Shoppers walk down stairs featuring a five-metre-high reproduction of Vincent van Gogh's signature painting “Sunflowers”, at the entrance to Ocean Terminal in Hong Kong July 15, 2013. A premium three-dimensional reproduction of works of Van Gogh, the RELIEVO collection, approved by the curators of the Van Gogh Museum in Amsterdam, is on display at a gallery inside Harbour City shopping mall attached to the terminal. (Photo by Bobby Yip/Reuters)

A journalist walks amid life-size figures of Doraemon on the roof of the Tokyo Tower Foot Town during the press preview of the Fujiko F Fujio Exhibition on July 18, 2013. The exhibition will be held from July 19 to October 6. (Photo by Toru Yamanaka/AFP Photo)

A German Federal Bank employee unravels the safety thread of flood-damaged fifty euro banknotes at the counterfeit analysis center in Mainz, Germany on July 15, 2013 in order to separate and count the notes. After the devastating flood in June 2013 in eastern and southern Germany, more than a hundred thousand damaged banknotes have already been registered by the German Federal Bank. The money can be exchanged without charge. (Photo by Fredrik Von Erichsen/AFP Photo/Dpa)

Chinese honour guards prepare for the arrival of the Vice President of Venezuela Jorge Arreaza Montserrat and Chinese Vice President Li Yuanchao during a welcoming ceremony at the Great Hall of the People in Beijing on July 18, 2013. Montserrat is on a visit to China from July 17 to 21. (Photo by Wang Zhao/AFP Photo)

Showers are set-up along a street in the capital Baghdad as temperature soar during the Muslim fasting month of Ramadan, on July 15, 2013. Throughout the month, devout Muslims must abstain from food and drink from dawn until sunset when they break the fast with the Iftar meal. (Photo by Ahmad Al-Rubaye/AFP Photo)

Kids in camouflage clothes attend a physical training session in a kindergarten in Taichung, central Taiwan, July 15, 2013. A kindergarten in Taiwan provides physical training sessions, a series of exercises that combines marine drills and gymnastics for pre-school and school aged kids. The training helps children grow well in both mind and body, according to the principal. (Photo by Pichi Chuang/Reuters)

Four 350-feet-tall smoke stacks and boilers are demolished by Florida Power and Light Company (FPL) at its Port Everglades power plant in Hollywood, Florida,July 16, 2013 in this picture provided by Florida Power and Light Company. The demolition was done to make way for a new, high-efficiency, clean power plant. Scheduled to open in 2016, the new, state-of-the-art combined-cycle natural gas plant will produce enough electricity to power approximately 260,000 homes while using 35 percent less fuel than the old power plant, according to FPL. (Photo by Brian Blanco/Reuters/Florida Power and Light)

PETA protester turns heads in downtown Ottawa, on July 17, 2013 as she draws attention to the suffering of animals raised for food. (Photo by Chris Wattie/Reuters)

People sunbathe in front of the capsized cruise liner Costa Concordia lying surrounded by cranes outside Giglio harbour July 17, 2013. The trial of the captain of the Costa Concordia cruise ship, which capsized off Italy's coast last year killing 32 people, resumes on Wednesday after it was delayed by a lawyers' strike earlier this month. The trial will examine one of the most dramatic marine accidents in recent Italian history, when the huge liner struck a rock outside the port of Giglio in January 2012 and keeled over on to its side, setting off a chaotic night-time evacuation of more than 4,000 passengers and crew. Schettino, accused of abandoning ship before all crew and passengers had been rescued, faces charges including manslaughter and causing the loss of his ship, which still rests on its side in the Tuscan port. (Photo by Giampiero Sposito/Reuters)

Policemen detain a woman on a police truck during a protest against the verdict of a court in Kirov, which sentenced Russian opposition leader Alexei Navalny to five years in jail, in central Moscow, July 18, 2013. Russian opposition leader Alexei Navalny was sentenced to five years in jail for theft on Thursday, an unexpectedly tough punishment which supporters said proved President Vladimir Putin was a dictator ruling by repression. (Photo by Grigory Dukor/Reuters)

Grief-stricken family members react over the bodies of their children who died after consuming a free mid day meal at a school at Gandaman in Saran District, India's Bihar state, on July 17, 2013. Twenty-two children have died after eating a free lunch feared to contain poisonous chemicals at an Indian primary school, officials said, as the tragedy sparked angry street protests. (Photo by AFP Photo)

Indian Muslim youth dive as flood waters enter the tank of the 600 year old Sarkhej Roza architectural complex, which has been dry for the last seven years, in Ahmedabad on July 14, 2013. The Sarkhej Roza is maintained by the Archeological Survey of India and this tomb and mosque of a Sufi saint are known in this region as “Ganj Bakhsh”. (Photo by Sam Panthaky/AFP Photo)

Rice fields in Inakadate town, Aomori, in northern Japan, depict film star Marilyn Monroe and a traditional Japanese courtesan, on July 19, 2013. The annual event, which sees different kinds of rice planted to create a giant picture, is known at Tanbo art. (Photo by Reuters/Kyodo)

A man rides his bikeon the wooden pedestrian way in the small city of Vylkove, Odessa region, on July 11, 2013. Vylkove is also known as “The Ukrainian Venice” thanks to a number of canals inside its territory – the reason why boating is a more common method of transport than an automobile. The city is the last settlement on bank of the Danube before the Black Sea. The Danube river is Europe's second longest river after the Volga. From Black forest of Germany to the Black Sea it passes through or touches the borders of ten countries of Central Europe. (Photo by Sergei Supinsky/AFP Photo)

An Indian officers measures a candidate during a physical fitness test at an Indian Army recruitment rally at Khasa, some 15 Kms from Amritsar, on July 15, 2013. The Indian Army is a voluntary service and the world's largest standing volunteer army, with over a million active personnel and just under a million in reserve. (Photo by Narinder Nanu/AFP Photo)

A team goes over an obstacle as they compete in the Red Bull Soapbox race in London on July 14, 2013. The Red Bull Soapbox race is an annual event where amateur drivers race with their homemade soapbox vehicles down a 420m hill through obstacles. (Photo by Justin Tallis/AFP Photo)

A policeman beats a man, who was detained, inside a police bus during a protest against the verdict of a court in Kirov, which sentenced Russian opposition leader Alexei Navalny to five years in jail, in central Moscow, July 18, 2013. Navalny was sentenced to five years in jail for theft on Thursday, an unexpectedly tough punishment which supporters said proved President Vladimir Putin was a dictator ruling by repression. (Photo by Tatyana Makeyeva/Reuters)

Women wearing traditional Sevillana dresses (L) walk past street performers at Marques de Larios street in downtown Malaga, southern Spain, July 18, 2013. (Photo by Jon Nazca/Reuters)

Citizens look on as water flooded streets in a lobby on July 19, 2013 as heavy storm hit Kunming, southwest China's Yunnan province. At least 295 people have been confirmed dead or missing after rainstorms and Typhoon Soulik hit China, causing floods, landslides and buildings to collapse, the government said on July 15. (Photo by AFP Photo)

Protesters react in front of riot policemen during a demonstration against last month's rape of 29-year-old shop assistant Iryna Krashkova, in central Kiev early July 19, 2013. The rape, which protesters said police were involved, sparked demonstrations across several cities in Ukraine and calls for the resignation of the Interior Minister, local media reported. (Photo by Valentyn Ogirenko/Reuters)

The Eiffel Tower in Paris is floodlit in the colours of the South African flag on July 18, 2013 in honour of Mandela Day, the birthday of Nelson Mandela. (Photo by Pierre Andrieu/AFP Photo)

A young man looks back at protestors as he rides down the street with a girl on the handlebars, in downtown Los Angeles, July 16, 2013. Protestors angry at the acquittal of George Zimmerman in the death of black teen Trayvon Martin marched through the streets of downtown Los Angeles, California July 16, 2013. A jury in Sanford, Florida last week found Zimmerman, a volunteer neighborhood watchman, not guilty of shooting dead Martin, a 17 year-old unarmed teen on the night of February 26, 2012. (Photo by Robyn Beck/AFP Photo)

A girl rows her family's fishing boat on the river Nile in Cairo April 14, 2013. Most of Egypt's population live clustered around the Nile valley and delta, and the river is both a vital resource for the country's citizens, and a potent national symbol. In a recent dispute with Ethiopia over the construction of a dam upstream, Egypt's foreign minister Mohamed Kamel Amr underlined the country's reliance on the river's waters: “No Nile – no Egypt”, he said. (Photo by Asmaa Waguih/Reuters)

An Israeli soldier checks the barrel of a tank of the 53rd Armor Battalion during an exercise in the Israeli controlled Golan Heights near the border with Syria, early Thursday, July 18, 2013. (Photo by Ariel Schalit/AP Photo)

Colombia President Juan Manuel Santos (L) speaks to members of guerrilla group ELN, who have defected and handed over their weapons, at a military base in Cali July 16, 2013. Authorities said 30 rebels from Colombia's second-biggest guerrilla group, the National Liberation Army (ELN), demobilized on Tuesday in El Tambo municipality in Cauca due to military pressure in the area. (Photo by Jaime Saldarriaga/Reuters)

A bookmaker presents the latest odds on boys names outside the Lindo Wing of St Mary's Hospital in London, on July 17, 2013, where Prince William and his wife Catherine's baby is expected to be born. Britain's Prince Charles joked Monday that his son Prince William's baby was “hopefully” on the way, but wife Camilla went further, saying it could arrive “by the end of the week”. (Photo by Leon Neal/AFP Photo)

Shannon Lee, daughter of the late Kung Fu legend Bruce Lee, poses beside a portrait of her father at the Hong Kong Heritage Museum, before the start of a five-year exhibition on Lee, July 18, 2013. Late kung fu superstar Bruce Lee may be an international icon, but he is still not the complete local hero in Hong Kong. Fans are marking his death 40 years ago this weekend with art gallery shows, exhibitions and even street graffiti but some people are urging Hong Kong's government to do more to honour the former British colony's biggest star. (Photo by Bobby Yip/Reuters)

School children eat their free mid-day meal, distributed by a government-run primary school, at Brahimpur village in Chapra district of the eastern Indian state of Bihar July 19, 2013. Police suspect that India's worst outbreak of mass food poisoning in years was caused by cooking oil that had been kept in a container previously used to store pesticide, the magistrate overseeing the investigation said on Friday. (Photo by Adnan Abidi/Reuters)

German three-time Red Bull Formula One world champion Sebastian Vettel loses a wing as he lands a jump during a soapbox fun race in the western German town of Herten, near Gelsenkirchen, July 14, 2013. (Photo by Wolfgang Rattay/Reuters)

Gay couples celebrate as a mariachi band performs after getting married at a courthouse in Mexico City, Sunday, July 14, 2013. The Mexico City government organized the collective wedding of 26 gay and lesbian couples this Sunday under Latin America's first law that explicitly approves gay marriage. (Photo by Marco Ugarte/AP Photo)

The Royal Air Force Red Arrows Display Team perform at RAF Fairford, Wiltshire, ahead of the Royal International Air Tattoo July 19, 2013. (Photo by Ben Birchall/PA Wire)

Free Syrian Army fighters prepare to fire a mortar shell during what they say is an offensive against forces loyal to Syria's President Bashar al-Assad, in Idlib, on July 17, 2013. (Photo by Abdalghne Karoof/Reuters)

Smoke from the Mountain Fire obscures the sun as a fire fighting helicopter heads to fight the Mountain Fire after picking up water from Lake Hemet July 18, 2013 near Idyllwild, California. The massive wildfire in Riverside County has grown to 23,000 acres and is advancing towards the mountain town of Idyllwild on one front and city of Palm Springs on the other front destroying several homes and forcing the evacuation of 6,000 people. (Photo by Kevork Djansezian/Getty Images)

Trayvon Martin supporters rally in New York City's Times Square after marching from a rally in Union Square July 14, 2013. The action came after George Zimmerman was acquitted July 13 of all charges in the February 2012 shooting death of Martin. (Photo by Mario Tama/Getty Images)

The Sagrada Familia cathedral is seen in the background as an unidentified diver practices ahead of the FINA World Championships in Barcelona, Spain, Monday, July 15, 2013. The FINA swimming World Championships run from July 19 to August 4 in Barcelona. (Photo by Manu Fernandez/AP Photo)

Sweden's Ake Johansson, left, and a friend climb L'Epine pass on a self-made tandem bicycle during the nineteenth stage of the Tour de France cycling race over 204.5 kilometers (127.8 miles) with start in in Bourg-d'Oisans and finish in Le Grand-Bornand, France, Friday July 19 2013. (Photo by Peter Dejong/AP Photo)

Police detain a protester during a demonstration in the southern Israeli city of Beersheba, on July 15, 2013. Protesters scuffled with Israeli police during a demonstration against an Israeli cabinet plan to relocate some 30,000 Bedouin citizens from southern Negev. According to an Israeli police spokesman, 800 protesters gathered for the demonstration of which 15 were detained. (Photo by Amir Cohen/Reuters)

Egyptian security forces fire tear gas towards supporters of ousted President Mohammed Morsi during clashes in downtown Cairo, Egypt, on July 15, 2013. (Photo by Hussein Malla/Associated Press)

Municipal public school guard Yiorgos Avramidis, 43, married with two children of three and six, from the northern Greek town of Edessa, is comforted by colleagues in front of a police line guarding the Greek parliament in Athens, as Greece's shaky coalition government scraped through a vote on a bill to sack public sector workers, on July 17, 2013. The bill includes deeply divisive plans for a transfer and layoff scheme for 25,000 public workers - mainly teachers and municipal police - that had triggered a week of almost daily marches, rallies and strikes in protest. Avramidis is one of the more than 2,000 public school guards who lost their jobs. (Photo by Yannis Behrakis/Reuters)

A porter smokes during a break at a flour wholesale market in Beijing, on July 18, 2013. (Photo by Jason Lee/Reuters)

A fisherman wades in Chaohu Lake, covered in blue-green algae, in Chaohu city, Anhui province, on July 19, 2013. (Photo by Reuters/China Daily)

Rio de Janeiro dawns with haze, on July 18, 2013. Santos Dumont Airport was closed for a few hours. (Photo by Marcos Estrella/TV Globo)

A boy swims in the muddy waters in Kabul, Afghanistan, on July 16, 2013. (Photo by Omar Sobhani/Reuters)

Soldiers Indian Signal Corps, also called Dare Devils celebrates the jubilee of the military university and Mechanical Engineering in Secunderabad, on July 14, 2013. (Photo by Noah Seelam/AFP Photo)

A boy plays in the waters of Massachusetts Bay, framed by a large sand sculpture at Revere Beach, on July 19, 2013. (Photo by Elise Amendola/Associated Press)

A novice Tibetan Buddhist monk peeps through a hole as he hides behind a desk holding a toy gun during a break from their spiritual leader the Dalai Lama's religious sermon outside the Gyudmed Tantric Monastery southwest of Bangalore, India, on July 15, 2013. (Photo by Aijaz Rahi/Associated Press)

L'Oreal Colour Trophy. Pictured is Alyson Boyle showcasing a show-stopping hair creation by The Hugh Campbell Group, Limerick at the advance photocall for the L'Oreal Colour Trophy Grand Final in the Dublin Convention Centre tonight, on July 15, 2013. (Photo by Sasko Lazarov/Photocall Ireland)

North Korean leader Kim Jong-un visits a Mushroom Farm in this undated photo released by North Korea's Korean Central News Agency (KCNA) in Pyongyang July 16, 2013. (Photo by Reuters/KCNA)

A street vendor prepares Jalabis during the month of Ramadan in Quetta, Pakistan. (Photo by Banaras Khan/AFP Photo)

A U.S.-made private collective taxi drives down Havana's seafront boulevard “El Malecon” during sunset, on July 15, 2013. (Photo by Desmond Boylan/Reuters)

Music student Dylan Gibbs, of Simsbury, Conn., plays a piano rested on a bluff at Poplar State Beach in Half Moon Bay., Calif., on July 15, 2013. Twelve pianos were strategically placed along various locations along the San Mateo County coastline as part of an art project entitled “Opus Two for Twelve Pianos” by area artist Mauro Ffortissimo. The artist and supporters have also been staging sunset piano recitals along the coast and inviting visitors to play the pianos. (Photo by Marcio Jose Sanchez/Associated Press)

An Indian “sadhu” – holy man' blows a buffalo horn on the eve of the traditional Kharchi Puja festival at Agartala, the capital of northeastern state of Tripura, on July 16, 2013. (Photo by Arindam Dey/AFP Photo)

These magical shots present the Milky Way and stunning star trails around various locations in the UK, including Stonehenge and Netley Abbey, on July 16, 2013. (Photo by David Sharp/Solent New)

Television crews interview people wearing masks of Britain's Prince William and Catherine, Duchess of Cambridge outside the Lindo Wing of St Mary's Hospital, where the Duchess of Cambridge is expected to give birth, on July 19, 2013. (Photo by Luke MacGregor/Reuters)

A fisherman holds a rod, attached to inflated condoms used as a float in Havana, on July 14, 2013. Cuban fishermen regularly use condoms for a balloon-deployed fishing rig as they have limited access to balloons. (Photo by Desmond Boylan/Reuters)

Daredevil adventurers who create their very own, potentially fatal, stunts on the tip of the Trolls Tongue in Norway, on July 16, 2013. (Photo by Caters News)

A 500-pound bomb from World War II is detonated in a controlled explosion on the beach in Wannenaar, Netherlands, on July 14, 2013. The bomb was discovered during excavation work. (Photo by Robin Utrecht/AFP Photo)

A frontier soldier helps a man move away from waves ahead of Typhoon Soulik in Wenzhou, Zhejiang province, China, on July 14, 2013. (Photo by Reuters/China Daily)

Edvard Munch's The Scream recreated by Michael Bosanko, on July 18, 2013. The light artist has been producing breathtaking light artworks since 2004. (Photo by Caters News)

Russia's President Vladimir Putinr rides in a C-Explorer 5 submersible after a dive to see the remains of the naval frigate “Oleg”, which sank in the 19th century, in the Gulf of Finland in the Baltic Sea, on July 15, 2013. (Photo by Aleksey Nikolskyi/RIA Novosti/Kremlin)

Zheng Meiju walks towards her partially demolished nail house in Rui'an, Jiangsu province, China, on July 18, 2013. Zhang, owner of the nail house, refused to move due to dissatisfaction of the compensation since the demolition project started last July making way for a new business plaza. (Photo by Reuters)

Women smear each other with mineral-rich blue mud on the bank of the Tus lake in Russia's Khakassia region, on July 19, 2013. Russians from different regions annually arrive at the lake to bathe in the bitter-salty water and smear themselves with mud, which is a healing remedy. (Photo by Ilya Naymushin/Reuters)

A demonstrator is detained by riot police during a protest against Rio de Janeiro governor Sergio Cabral, on July 18, 2013. Tens of thousands of Brazilians have taken to the streets since June in the biggest protests in 20 years, fueled by an array of grievances ranging from poor public services to the high cost of World Cup soccer stadiums and corruption. (Photo by Lucas Landau/Reuters)

Reaction Engines undated handout artist impression of the “spaceplane” called Skylon. The Government is to provide £60 million for a revolutionary new rocket engine that can send astronauts into orbit and accelerate aircraft to five times the speed of sound, a minister said. David Willetts, minister for universities and science, said the investment in Sabre, a British-designed engine, would provide support at a “crucial stage” to allow a full-scale prototype to be built. Reaction Engines, the company behind the Sabre project, wants to use the technology on a unique “spaceplane” called Skylon, which will be capable of taking people to Earth's stratosphere in just 15 minutes. (Photo by Reaction Engines/PA Wire)

Tourists admire an ancient statue in the hall of the archaic period at the Athens Acropolis Museum, on July 19, 2013. (Photo by John Kolesidis /Reuters)

The bodies of two alleged rebel fighters are dumped out of the back of a pickup truck by soldiers in the Democratic Republic of the Congo on July 16, 2013. According to the army, one of the men was Ugandan and the other Rwandan, but they could not produce the identity cards that they claimed to have seen proving this. (Photo by Phil Moore/AFP Photo)

Passengers carry their belonging as they leave form a derailed train in Phrae province, northern Thailand Wednesday, July 17, 2013. The passenger train derailed on old tracks in the mountains of northern Thailand early Wednesday, slightly injuring at least 30 passengers, mostly foreign tourists. It was the second derailment on the popular route in a month. (Photo by AP Photo/Daily News)

Lightning strikes a fence near the Fiesta hotel-casino in Henderson, Nevada as a thunderstorm makes its way through the Las Vegas Valley, on July 19, 2013. (Photo by Steve Marcus/Las Vegas Sun)

Singers and artists perform on a giant futuristic stage built into Lake Constance in Bregenz, Austria, at a dress rehearsal of Wolfgang Amadeus Mozart's opera “Die Zauberfloete” ( The Magic Flute), on July 12, 2013. (Photo by Kerstin Joensson/Associated Press)

Participants practice at the Kitesurfing World Cup 2013 in St. Peter-Ording, at the North Sea, Germany, on July 19, 2013. (Photo by Marcus Brandt/Dpa)

After playing in the mud, participants swim to clean themselves during the Boryeong Mud Festival at Daecheon beach in Boryeong, South Korea, on July 19, 2013. (Photo by Lee Jae-Won/Reuters)

NGC 4866, a lenticular galaxy, is shown in this NASA handout. Situated about 80 million light-years from earth, this image was captured by the Advanced Camera for Surveys, an instrument on the NASA/ESA Hubble Space Telescope. (Photo by Reuters/European Space Agency/NASA/ESA Hubble Space Telescope)

Karen Rayne, left, protests Texas Governor Rick Perry's signing of HB2 in the Capitol Extension Auditorium in Austin, on July 18, 2013. He signed the stricter abortion regulations into law Thursday morning as supporters cheered and faint chants of “shame” could be overheard from protesters outside the Capitol auditorium. (Photo by Laura Skelding/Austin American-Statesman)

Participants drive their cars up Mount Stoderzinken during the Ennstal Classic rally near the small Austrian village of Groebming, on July 18, 2013. Some 206 classic cars took part in a three day vintage and classic car rally around Ennstal. (Photo by Leonhard Foeger/Associated Press)

Parishioners carrying giant torches descend a steep stone stairway during the annual grand fire festival of Kumano Nachi Shrine in Nachi Katsuura, western Japan, on July 14, 2013. (Photo by Kyodo News)

Competitors race down a big stockpile in a homemade coal lorry soapbox racer in Herten, Germany, on July 14, 2013. About 40,000 spectators climbed the 220 meters mine pile in the center of the Ruhr valley to watch the Red Bull soapbox fun race. (Photo by Martin Meissner/Associated Press)

Newly inducted Tennis Hall of Famer Martina Hingis plays barefoot tennis on a show court adjacent to the Hall of Fame Tennis Museum in Newport, R.I., on July 14, 2013. (Photo by Elise Amendola/Associated Press)

Pantha Bradbury, three, stands in front of a 39 feet-wide dragon skull, which has been created to celebrate the launch of HBO's “Game of Thrones” Season 3 on the television and movie service, blinkbox, on Charmouth beach on the Jurassic coast in Lyme Regis, Dorset, on July 15, 2013. (Photo by David Parry/PA Wire)