Model maker Helga Mueller restores the model of the Statue of Liberty of New York with gold foil behind a model of the Capitol of Washington in the landscape park Miniwelt (Miniworld) in Lichtenstein, eastern Germany, Wednesday, May 20, 2015. Miniwelt presents about 100 original and true-to detail buildings and technical facilities at a 1:25 scale. (Photo by Jens Meyer/AP Photo)

Tom Ito, of Blue Aerospace & Heico company, takes part in a parachute simulator at the 2015 Special Operations Forces Industry Conference at the Tampa Convention Center on Tuesday, May 19, 2015. (Photo by Michael Bou-Nacklie/The Tampa Bay Times via AP Photo)

A sign points the way to the street in the disused Down Street underground station on May 18, 2015 in London, England. The disused underground railway station, which closed in 1932, was used by wartime leader Winston Churchill for some cabinet meetings in 1932 as his Whitehall bunker was being built. Transport for London are seeking ideas from businesses that may want to lease some of the 400 square metres available at the station. Out of 270 functioning stations in London there are at least 40, Overground and Underground stations, which still exist but are no longer used. (Photo by Peter Macdiarmid/Getty Images)

Kevin Doyle stood near the entrance to the new Saints stadium dressed as a Star Wars Imperial Stormtrooper before Monday, May 18, 2015, in St. Paul, Minn. He's does it to call attention to a fundraising walk he's going to do this summer – in costume – from San Francisco to San Diego and back again to raise money to fight cancer. He has done previous walks to honor his wife, Eileen Shige Doyle, who died of cancer. (Photo by Jeff Wheeler/Star Tribune via AP Photo)

Revelers throw colored powder during a Holi Festival in Yverdon-les-Bains, Switzerland, May 16, 2015. The festival is based on the Hindu Spring festival Holi, also known as the festival of colors where participants color each other with dry powder and colored water. (Photo by Jean-Christophe Bott/EPA)

A Cambodian family collects corns in front of their home in Thnol Bek village during its harvest season, in Kandal province, south of Phnom Penh, Cambodia, Monday, May 18, 2015. The people in Thnol Bek village harvested the red corns and dry them under the sun before it is sold to the neighboring country of Vietnam. The crop is traditionally main income, though the villagers also fish and plant rice and other crops. (Photo by Heng Sinith/AP Photo)

Young Pioneers march on Red Square during a ceremony to celebrate joining the Pioneers organization, in Moscow, Russia, Sunday, May 17, 2015. Pro-Communist Russians try to preserve the Young Pioneers, which used to be the Communist league for pre-teens in the Soviet Union. (Photo by Alexander Zemlianichenko Jr./AP Photo)

Girls and boys stand holding red neckerchiefs salute on Red Square, in front of the Spasslaya Tower, during a ceremony to celebrate joining the Pioneers organization, in Moscow, Russia, Sunday, May 17, 2015. (Photo by Alexander Zemlianichenko Jr./AP Photo)

A handout photo received from Red Bull and taken on May 17, 2015 shows Artem Silchenko of Russia diving from the 27.5 metre platform on the Saint Nicolas Tower during the second stop of the Red Bull Cliff Diving World Series at La Rochelle, France. Gary Hunt of the UK won the event, with fellow Briton Blake Aldridge placing second and Orlando Duque of Colombia third. (Photo by Vincent Curutchet/AFP Photo)

A garden scene is projected onto Customs House as part of the Vivid festival in Sydney, Thursday, May 21, 2015. Projections, interactive displays and sound form the annual Vivid Sydney festival of display, light, music and ideas that runs until June 8. (Photo by Rick Rycroft/AP Photo)

A woman dances while protesting in front of the Government building in Skopje, Macedonia, on Sunday, May 17, 2015. Macedonian opposition started massive demonstrations Sunday in Skopje protesting against the conservative government of the Prime Minister Nikola Gruevski, demanding its resignation. The banner strip reads “I Ptotest”. (Photo by Boris Grdanoski/AP Photo)

A woman with the national flag arrives at a rally in front of the Parliament building in Skopje, Macedonia, May 18, 2015. A massive pro-government rally was organized by Macedonia's rulling coalition led by conservative VMRO-DPMNE party, late Monday in Skopje. Macedonia faces one of its deepest political crises since gaining independence from Yugoslavia in 1991, stemming from opposition claims that the government illegally wire-tapped 20,000 people. (Photo by Boris Grdanoski/AP Photo)

Members of the Sabean Mandaeans, a pre-Christian sect that follows the teachings of John the Baptist, take part in a bathing ritual during the Baptism Festival, on the banks of the Shatt al-Arab waterway in Basra, 340 miles (550 kilometers) southeast of Baghdad, Iraq, Wednesday, May 20, 2015. (Photo by Nabil al-Jurani/AP Photo)

Soldiers clear a roadblock set by demonstrators in the Cibitoke neighborhood of Bujumbura, Burundi, Friday May 22, 2015. Two protesters in Burundi were shot dead Thursday, said the Red Cross, as pitched battles in the capital escalated between police and demonstrators opposed to President Pierre Nkurunziza's bid for a third term. (Photo by Jerome Delay/AP Photo)

Burundian protesters pull electrical cable to topple the power pole, during an anti-government demonstration in the capital Bujumbura, Burundi, 21 May 2015. The Red Cross said two protesters had been killed during protests against Nkurunziza's bid for a third term on 21 May. According to the United Nations' refugee agency, more than 105,000 Burndians have fled the country to seek refuge in neighbouring countries such as Rwanda, DR Congo, and Tanzania. (Photo by Dai Kurokawa/EPA)

In this photo taken Tuesday, May 13, 2014, a Proton-M rocket is installed at Baikonur launch pad in Kazakhstan. A Russian rocket, Proton-M, carrying a Mexican satellite malfunctioned Saturday shortly after its launch, the latest mishap to hit Russia's troubled space industry, whose Soviet-era glory has been tarnished by a series of launch failures. (Photo by Roscosmos via AP Photo)

In this photo taken on May 20, 2015, Chinese workers travel on the back of a trailer pulled by a tractor on their way to work in Kinshasa, Democratic Republic of Congo. Congo's government is bringing in outside experts including officials from the World Bank and the United Nations, to investigate the long-term impact of some $6.7 billion in contracts with Chinese companies that critics have said could exploit the central African nation's mineral riches. (Photo by John Bompengo/AP Photo)

Oregon outfielder Janie Takeda hits a double to center field during the fourth inning of an NCAA softball game against North Dakota State at Howe Field, Friday, May 15, 2015 in Eugene, Ore. (Photo by Brian Davies/The Register-Guard via AP Photo)

Riot police detain men during a land eviction in Lima Peru,Tuesday, May 19, 2015. On Monday hundreds of people squatted on land that according to the Ministry of Culture is an archaeological site. (Photo by Rodrigo Abd/AP Photo)

Maria Sharapova, of Russia, is sprayed with champagne as she holds the trophy after defeating Carla Suarez Navarro of Spain, at the end of the final match of the Italian Open tennis tournament, in Rome, Sunday, May 17, 2015. Sharapova won 4-6, 7-5, 6-1. (Photo by Ettore Ferrari/ANSA via AP Photo)

Indonesian men dressed as “stormtroopers” from the movie “Star Wars” stand on an escalator during a promotional event at a shopping mall in Jakarta, Indonesia, Tuesday, May 19, 2015. Stormtroopers are fictional soldiers from the epic film series. (Photo by Dita Alangkara/AP Photo)

In this Friday, April 24, 2015 photo, Fernando Lopez Ramirez plays a guitar made from a discarded tennis racquet, during a jam session in the outskirts of Mexico City. Lopez Ramirez and his brothers, cousins and friends are members of the “Orquesta Basura” or Trash Ochestra. They collect trash items like pots, pans, wooden boxes, hub caps and tennis racquets from the trash in their neighboorhood and turn them into musical instruments. (Photo by Marco Ugarte/AP Photo)

In this Friday, April 24 photo, Fernando Lopez Ramirez plays an accordion made out of discarded wooden shelves, boxes, wallpaper and typewriter keys during a jam session at a popular neighborhood in Mexico City. (Photo by Marco Ugarte/AP Photo)

In this Friday, April 24, 2015 photo, Fernando Lopez, left, Oscar De Jesus Ramirez, center, and Jair Cerda Lopez, play their musical instruments made form trash during a jam session at their workshop in the outskirts of Mexico City. (Photo by Marco Ugarte/AP Photo)

In this May 17, 2015, photo, a girl paints on an umbrella in Pathein township, Ayeyarwady Delta, Myanmar. (Photo by Khin Maung Win/AP Photo)

Video mapping is used to display a projection on the Hotel Sale which houses the Picasso Museum in Paris, as part of the 11th edition of the European museum night, on May 16, 2015. The European museum night was created in 2005 by the French Ministry of Culture and Communication, with the closing time of the museums postponed to approximately one in the morning, allowing the public to visit the participating museums by night, for free. (Photo by Thomas Samson/AFP Photo)

Palestinian demonstrators are confronted by Israeli police during the Israeli's “flag march” through Damascus Gate in Jerusalem's old city during celebrations for Jerusalem Day on May 17, 2015 which marks the anniversary of the “reunification” of the holy city after Israel captured the Arab eastern sector from Jordan during the 1967 Six-Day War. (Photo by Jack Guez/AFP Photo)

French pilot Francois Le Vot of Breitling Racing hits a pylon, which forms an air gate, during round 14 Master Class competitions at the Red Bull Air Race Chiba, one of the 2015 Red Bull Air Race World Championship series, in Makuhari, Chiba prefecture on May 17, 2015. (Photo by Kazuhiro Nogi/AFP Photo)

Australian aboriginal elders perform a smoking ceremony to welcome members of the Polynesian Voyaging Society on the voyaging canoe Hōkūleʻa on its 47,000 nautical mile journey over four years to engage a global community in creating a healthy and sustainable planet in Sydney on May 19, 2015. Hawaii’s Hōkūleʻa sailed into Sydney Harbour as part of its worldwide conservation themed Malama Honua voyage, a voyage in which the 19 metre vessel sails using only wind power and is navigated using ancestral knowledge of star patterns, ocean movement and weather patterns. (Photo by Peter Parks/AFP Photo)

Flying pigeons pass over Nepalese street vendors near the earthquake damaged UNESCO World Heritage Site, Durbar Square in Kathmandu on May 20, 2015. Nearly 8,500 people have now been confirmed dead in the disaster, which destroyed more than half a million homes and left huge numbers of people without shelter with just weeks to go until the monsoon rains. (Photo by Ishara S. Kodikara/AFP Photo)

A member of the Palestinian Hamas security forces decends down a zip-line during their military training graduation ceremony in Gaza City on May 21, 2015. (Photo by Mohammed Abed/AFP Photo)

School children hand out food to a Rohingya young girl from outside the fence of a temporary shelter in Bayeun, Aceh province, Indonesia, Thursday, May 21, 2015. In the past three weeks, thousands of people fleeing persecution in Myanmar and Bangladeshis trying to escape poverty have landed in overcrowded boats on the shores of Indonesia, Malaysia and Thailand. After initially pushing many boats back, Malaysia and Indonesia announced on Wednesday that they will offer temporary shelter to all incoming migrants. (Photo by Binsar Bakkara/AP Photo)

A Kashmiri woman rows a boat carrying lotus leaves, to be used as food for livestock, across Dal Lake in Srinagar on May 21, 2015, during a one day strike called by senior seperatist leader Mirwaiz Umar Farooq. (Photo by Tauseef Mustafa/AFP Photo)

The work “Anas Animatus”, a comic-strip Donald Duck character, is on display as skeleton during the press preview of the exhibition “Animatus” by South Korean artist Hyungkoo Lee in Moscow, Russia, May 20, 2015. (Photo by Yuri Kochetkov/EPA)

Katrina Dennis, right, of Baltimore, Md., celebrates after winning the Longines Most Elegant Woman at the Preakness contest, Saturday, May 16, 2015, at Pimlico Race Course in Baltimore, Md. Longines, the Swiss watch manufacturer known for its elegant timepieces, is the Official Watch and Timekeeper of the 140th annual Preakness Stakes and the Triple Crown. (Photo by Diane Bondareff/Invision for Longines/AP Images)

A model, foreground, holds small flags of Arab nations as she and other models display creations by the Emirati designer Mona al-Mansouri of her Spring-Summer 2015 fashion show during the summer fashion week at Saint George Yacht Club in Beirut, Lebanon, Tuesday, May 19, 2015. (Photo by Hussein Malla/AP Photo)

A model displays a creation by the Emirati designer Mona al-Mansouri of her Spring-Summer 2015 fashion show during the summer fashion week at Saint George Yacht Club in Beirut, Lebanon, Tuesday, May 19, 2015. (Photo by Hussein Malla/AP Photo)

A model tries to fix her dress for walking as she displays a wedding dress by the Emirati designer Mona al-Mansouri of her Spring-Summer 2015 fashion show during the summer fashion week at Saint George Yacht Club in Beirut, Lebanon, Tuesday, May 19, 2015. (Photo by Hussein Malla/AP Photo)

Perfomers take part in a photocall for “Scotch and Soda” part of London Wonderground on May 19, 2015 in London, England. Scotch and Soda runs from May 14 to August 2, 2015. (Photo by Tim P. Whitby/Getty Images)

People sit on deck chairs on an artificial beach as a bride and groom ride a classic American convertible car on the Malecon in Havana, Cuba, Thursday, May 21, 2015. The artificial beach is part of a collective artistic intervention named “Behind The Wall” for the Havana Biennial Art Fair which starts on May 22. (Photo by Desmond Boylan/AP Photo)

SpaceX’s Dragon cargo capsule is seen docked to the Earth facing port of the International Space Stations's Harmony module. SpaceX’s sixth commercial resupply flight to the ISS launched on April 14 and arrived three days later. It will depart with over 3,100 pounds of research samples and equipment and splashdown in the Pacific Ocean on May 21, 2015. (Photo by NASA)

Young dancers from the Sankofa Black Gold dance association perform at the Rossio square in downtown Lisbon, Saturday, May 16, 2015. The association began in Amadora, outside Lisbon, 34 years ago to promote African dance style and music. (Photo by Francisco SecoAP Photo)

American Pharoah, ridden by Victor Espinoza, center, wins the 140th Preakness Stakes horse race at Pimlico Race Course, Saturday, May 16, 2015, in Baltimore. (Photo by Patrick Semansky/AP Photo)

US Army soldiers use their smart phones to film the recovery of a Sikorsky UH-60 Black Hawk helicopter (bottom) by a Boeing CH-47 Chinook helicopter (top) in Plankenfels, Germany, 18 May 2015. The pilots had to make an emergency landing on a meadow near Plankenfels on 15 May, after a power line was overlooked. The main rotor of the helicopter severed one of the power lines and was damaged during the process. (Photo by Nicolas Armer/EPA)

Members of LGBT organizations take part in a march marking International Day Against Homophobia, in Managua, Nicaragua, Sunday, May 17, 2015. (Photo by Esteban Felix/AP Photo)

In this photo taken on Wednesday, May 13, 2015, children cheer for racers at the Barnyard racing pit at the Porterville Fairgrounds, in Porterville, Calif. The fair started Wednesday and will run through Sunday. (Photo by Chieko Hara/The Porterville Recorder via AP Photo)

Yeomen of the Guard march during a garden party in the grounds of Buckingham Palace in central London, May 20, 2015. (Photo by Ben Stansall/AFP Photo)

A heavily tattooed man makes a thumb up sign during the annual Athens Tattoo Convention in Athens, Sunday, May 17, 2015. About 230 artists from Greece and abroad took part in the three-day event attracted thousands of visitors. (Photo by Thanassis Stavrakis/AP Photo)

Heavily tattooed youths pose for their friends as they take part in a contest during the annual Athens Tattoo Convention in Athens, Sunday, May 17, 2015. (Photo by Thanassis Stavrakis/AP Photo)

Rolf Buchholz, 56, poses for a photograph during the annual Athens Tattoo Convention in Athens, Sunday, May 17, 2015. Buchholz, an information technology professional from Dortmund, Germany has 453 piercings and is the holder of a Guinness World Record. (Photo by Thanassis Stavrakis/AP Photo)

Hundreds of motorcycles are parked at the Public Property Management Organization (ODDY) during an auction in western Athens on Tuesday, May 19, 2015. The ODDY frequently auctions state and confiscated vehicles with hundreds of people trying to buy them at low prices. Greek Finance Minister Yanis Varoufakis said Monday that he expects an agreement with bailout creditors within the next week, which would save the cash-strapped country from fast-approaching bankruptcy. (Photo by Thanassis Stavrakis/AP Photo)

Vacationers are seen on cabin balconies of the 347-meter Quantum of the Seas cruise ship docked at the port of Piraeus near Athens, Monday, May 18, 2015. Greece's cash strapped government is examining ways to improve tax collection from the country's key tourism sector as it struggles to continue payments to bailout lenders. (Photo by Petros Giannakouris/AP Photo)

Naval personnel walk past the hospital ship USNS Mercy (T-AH 19) prior to its departure from Naval Base San Diego on a four month Pacific Partnership humanitarian deployment to the South Pacific May 15, 2015. The ship has a 1,000 patient bed capacity, four X-ray rooms a CT scan unit as well as a optometry and lens laboratory. (Photo by Mike Blake/Reuters)

Relatives of Exequiel Borvaran, a student who was shot dead on May 14 following a protest march, attend his wake in a church in Quilpue city, Chile May 15, 2015. Authorities believe Borvaran, 18, and fellow student Diego Guzman, 25, were killed by an irate resident as they sprayed graffiti on the wall of his building. (Photo by Rodrigo Garrido/Reuters)