A woman looks on the head of a Pharaoh, 26th dynasty at the Institut du Monde Arabe (Arab World Institute), part of the Osiris, Sunken Mysteries of Egypt exhibition in Paris, France, Wednesday, September 9, 2015. As Paris-based UNESCO decries the destruction of ancient sites in Syria, Paris' Arab World Institute defiantly celebrates the preservation of ancient culture by holding a never-before-seen exhibit of the remains of the ancient Egyptian city of Heracleion, inaugerated by French President Francois Hollande. (Photo by Michel Euler/AP Photo)





An explosion and smoke rise after an airstrike by the Saudi-led coalition at a weapons depot in Sanaa, Yemen, Friday, September 11, 2015. Saudi Arabia is leading a coalition of mainly Gulf nations fighting the Houthis, who seized the capital, Sanaa, last September. (Photo by Hani Mohammed/AP Photo)





A view of the “Comuna 13” neighborhood in Medellin, Colombia September 8, 2015. (Photo by Fredy Builes/Reuters)





Cable cars of the Metrocable transport system are pictured over the “Comuna 13” neighborhood in Medellin, Colombia September 8, 2015. (Photo by Fredy Builes/Reuters)





An escalator is seen near houses in “Comuna 13” neighborhood in Medellin, Colombia September 8, 2015. (Photo by Fredy Builes/Reuters)





A man walks in the “Comuna 13” neighborhood in Medellin, Colombia September 8, 2015. (Photo by Fredy Builes/Reuters)





Cable cars of the Metrocable transport system are pictured over “Comuna 13” neighborhood in Medellin, Colombia September 8, 2015. (Photo by Fredy Builes/Reuters)





A view from the “Comuna 13” neighborhood in Medellin, Colombia September 8, 2015. (Photo by Fredy Builes/Reuters)





People gather at the “Tribute in Light” in Lower Manhattan, New York, September 9, 2015. The tribute was lit two days ahead of the 14th anniversary of the 9/11 terrorist attacks. (Photo by Andrew Kelly/Reuters)





People gather at the “Tribute in Light” in Lower Manhattan, New York, September 9, 2015. (Photo by Andrew Kelly/Reuters)





The “Tribute in Light” is seen in Lower Manhattan, New York, September 9, 2015. (Photo by Andrew Kelly/Reuters)





A man takes a photo at the 9/11 Memorial and Museum near the “Tribute in Light” in Lower Manhattan, New York, September 9, 2015. (Photo by Andrew Kelly/Reuters)





People gather at the “Tribute in Light” in Lower Manhattan, New York, September 9, 2015. (Photo by Andrew Kelly/Reuters)





Soldiers prepare to fire M110 203mm howitzers during the annual Han Kuang military exercise in Hsinchu county, northern Taiwan, September 10, 2015. (Photo by Pichi Chuang/Reuters)





Soldiers fire M110 203mm howitzers during the annual Han Kuang military exercise in Hsinchu county, northern Taiwan, September 10, 2015. (Photo by Pichi Chuang/Reuters)





Soldiers fire M109A2 155mm howitzers during the annual Han Kuang military exercise in Hsinchu county, northern Taiwan, September 10, 2015. (Photo by Pichi Chuang/Reuters)





The shadow of a tree is projected onto the wall of an apartment block where a cat looks out a window in central Sydney, Australia, September 9, 2015. (Photo by David Gray/Reuters)





A woman dressed as a ghost performs during a promotion of the upcoming Ocean Park Halloween Fest in Hong Kong, China September 10, 2015. (Photo by Tyrone Siu/Reuters)





A man dressed as a zombie clown performs in front of visitors during a promotion of the upcoming Ocean Park Halloween Fest in Hong Kong, China September 10, 2015. (Photo by Tyrone Siu/Reuters)





A man dressed as a Chinese zombie performs during a promotion of the upcoming Ocean Park Halloween Fest in Hong Kong, China, September 10, 2015. (Photo by Tyrone Siu/Reuters)





A man dressed as a zombie performs during a promotion of the upcoming Ocean Park Halloween Fest in Hong Kong, China September 10, 2015. (Photo by Tyrone Siu/Reuters)





South Africa's Deputy President Cyril Ramaphosa kisses a replica of the skull of a newly discovered ancient species, named “Homo naledi”, during its unveiling outside Johannesburg September 10, 2015. Humanity's claim to uniqueness just suffered another setback: scientists reported on Thursday that the newly discovered ancient species related to humans also appeared to bury its dead. Fossils of the creature were unearthed in a deep cave near the famed sites of Sterkfontein and Swartkrans, treasure troves 50 km (30 miles) northwest of Johannesburg that have yielded pieces of the puzzle of human evolution for decades. The new species has been named 'Homo naledi', in honour of the “Rising Star” cave where it was found. Naledi means “star” in South Africa's Sesotho language. (Photo by Siphiwe Sibeko/Reuters)





Fossils of a newly discovered ancient species, named “Homo naledi”, are pictured during their unveiling outside Johannesburg September 10, 2015. (Photo by Siphiwe Sibeko/Reuters)





Fossils of a newly discovered ancient species, named “Homo naledi”, are pictured during their unveiling outside Johannesburg September 10, 2015. (Photo by Siphiwe Sibeko/Reuters)





A hand out image made available by the University of the Witwatersrand, shows the skull of the Homo Naledi seen during a media preview on September 7, 2015, in Johennesburg. (Photo by Brett Eloff/AFP Photo)





A hand out picture made available by the University of the Witwatersrand, shows the entrance to the “Rising Star Cave” system in Maropeng, close to Johannesburg, on November 16, 2013. (Photo by Brett Eloff/AFP Photo)





People take photos with the skyline of the central business district shrouded in haze in Singapore September 10, 2015. The 3-hour PSI reading in Singapore was 174 at 17:00 SGT (11:00 GMT) on Thursday. (Photo by Edgar Su/Reuters)





People take photos with the skyline of the central business district shrouded by haze in Singapore September 10, 2015. (Photo by Edgar Su/Reuters)





Tourists sit in a capsule on the Singapore flyer observatory wheel overlooking the skyline of the central business shrouded by haze in Singapore September 10, 2015. (Photo by Edgar Su/Reuters)





A man flies a kite during a hazy day in Singapore, Thursday, September 10, 2015. Air pollution in Singapore reached its highest level in a year on Thursday as smog from Indonesian forest fires shrouded the island nation in a veil of gray, irking tourists and alarming authorities with hours left before general elections. (Photo by Ng Han Guan/AP Photo)





Police officer Aylin Tasan, wife of Sergeant Okan Tasan, cries during the funeral of her husband at Kocatepe Mosque in Ankara, Turkey, September 10, 2015. Okan Tasan is one of the soldiers killed during an attack on a military convoy and clashes on Sunday in the mountainous Daglica area of Hakkari province. Pro-Kurdish politicians, including cabinet ministers, attempted to march to a town in southeast Turkey on Thursday to protest a week-old curfew there, as their party came under fire from President Tayyip Erdogan and from a court investigation of their leader. (Photo by Umit Bektas/Reuters)





Soldiers carry the flag-draped coffin of Sergeant Okan Tasan, one of the soldiers killed during an attack on a military convoy and clashes on Sunday in the mountainous Daglica area of Hakkari province, at Kocatepe Mosque in Ankara, Turkey, September 10, 2015. (Photo by Umit Bektas/Reuters)





Turkish President Tayyip Erdogan (2nd R), Prime Minister Ahmet Davutoglu (L) and Chief of Staff General Hulusi Akar (R) pray during the funeral of Sergeant Okan Tasan, one of the soldiers killed during an attack on a military convoy and clashes on Sunday in the mountainous Daglica area of Hakkari province, at Kocatepe Mosque in Ankara, Turkey, September 10, 2015. Pro-Kurdish politicians, including cabinet ministers, attempted to march to a town in southeast Turkey on Thursday to protest a week-old curfew there, as their party came under fire from President Tayyip Erdogan and from a court investigation of their leader. (Photo by Umit Bektas/Reuters)





A woman and a boy wear masks as they ride a bicycle during a sandstorm in Tel Aviv, Israel September 10, 2015. A heavy sandstorm, which swept across parts of the Middle East on Tuesday, could still be felt in Israel on Thursday. (Photo by Baz Ratner/Reuters)





An employee of a local farm loads sacks of potatoes on a customer's trailer at a street market on an embankment of the Yenisei River in the Siberian town of Divnogorsk near Krasnoyarsk, Russia, September 10, 2015. (Photo by Ilya Naymushin/Reuters)





An employee of a local farm has a meal while sitting on sacks of potatoes for sale at a street market on an embankment of the Yenisei River in the Siberian town of Divnogorsk near Krasnoyarsk, Russia, September 10, 2015. (Photo by Ilya Naymushin/Reuters)





A supporter of Uganda's former Prime Minister Amama Mabazi (not pictured) kicks a coloured tear gas canister fired by police to disperse a gathering in Jinja town in eastern Uganda September 10, 2015. Police in eastern Uganda fired teargas and live bullets on Thursday to disperse a campaign rally held by Amama Mbabazi, the country's former prime minister, who is seeking to unseat veteran leader Yoweri Museveni in next year's elections. (Photo by James Akena/Reuters)





A supporter of Uganda's former Prime Minister Amama Mbabazi wrestles with the gun of a policeman, as riot police disperse a gathering in Jinja town in eastern Uganda September 10, 2015. (Photo by James Akena/Reuters)





Supporters of Uganda's former Prime Minister Amama Mbabazi run from coloured tear gas canister police used to disperse a gathering in Jinja town in eastern Uganda September 10, 2015. (Photo by James Akena/Reuters)





A trader eats lunch at his desk at a brokerage in Sao Paulo, Brazil, September 10, 2015. Brazil's financial markets fell on Thursday after Standard & Poor's cut the country's sovereign rating to junk late Wednesday, though assets began to pare losses in late morning trading as the downgrade had been largely priced in. (Photo by Paulo Whitaker/Reuters)





A man holds a portrait of Belarussian President Alexander Lukashenko, who is a candidate in the upcoming presidential elections, and a Belarussian national flag during a meeting between opposition leaders and people, in central Minsk, September 10, 2015. The Belarussian presidential election is scheduled to be held on October 11, 2015. (Photo by Vasily Fedosenko/Reuters)





A cat and its trainers perform during “The Circus Princess”, a new programme, at the National Circus in the Ukrainian capital of Kiev September 10, 2015. (Photo by Gleb Garanich/Reuters)





A cat and its trainer perform during “The Circus Princess”, a new programme, at the National Circus in the Ukrainian capital of Kiev September 10, 2015. (Photo by Gleb Garanich/Reuters)





A clown performs during “The Circus Princess”, a new programme, at the National Circus in the Ukrainian capital of Kiev September 10, 2015. (Photo by Gleb Garanich/Reuters)





A woman is detained by national police during clashes between supporters of jailed opposition leader Leopoldo Lopez and government loyalists outside the courthouse in Caracas, Venezuela, Thursday, September 10, 2015. Supporters of a high-profile jailed Venezuelan opposition leader clashed with government loyalists Thursday outside a Caracas courthouse in anticipation of an impending verdict. (Photo by Ariana Cubillos/AP Photo)





Supporters of Venezuela's President Nicolas Maduro shout at supporters of jailed opposition leader Leopoldo Lopez during a gathering outside the courthouse during his trial in Caracas September 10, 2015. (Photo by Carlos Garcia Rawlins/Reuters)





Supporters of Venezuela's President Nicolas Maduro clash with supporters of jailed opposition leader Leopoldo Lopez during a gathering outside the courthouse during his trial in Caracas September 10, 2015. (Photo by Carlos Garcia Rawlins/Reuters)





Supporters of Venezuela's President Nicolas Maduro clash with supporters of jailed opposition leader Leopoldo Lopez during a gathering outside the courthouse during his trial in Caracas September 10, 2015. (Photo by Carlos Garcia Rawlins/Reuters)





Supporters of Venezuela's President Nicolas Maduro clash with supporters of jailed opposition leader Leopoldo Lopez during a gathering outside the courthouse during his trial in Caracas September 10, 2015. (Photo by Carlos Garcia Rawlins/Reuters)





A synthetic perspective view of Pluto, based on the latest high-resolution images to be downlinked from NASA's New Horizons spacecraft, shows what you would see if you were approximately 1,100 miles (1,800 kilometers) above Pluto's equatorial area, looking toward the bright, smooth, expanse of icy plains informally called Sputnik Planum, in this image taken July 14, 2015 and released September 10, 2015. The images were taken as New Horizons flew past Pluto from a distance of 50,000 miles (80,000 kilometers). (Photo by Reuters/NASA)





A woman cooks on a wood-fired stove outside her home in a poor neighborhood of La Carpio of San Jose, Costa Rica September 10, 2015. (Photo by Juan Carlos Ulate/Reuters)





A false head is seen on display during a media preview for the exhibit “Mummies: New Secrets from the Tombs” at the Natural History Museum of Los Angeles County in Los Angeles, California September 10, 2015. The exhibit opens to the public on September 18. (Photo by Mario Anzuoni/Reuters)





A CT scan machine is seen on display during a media preview for the exhibit “Mummies: New Secrets from the Tombs” at the Natural History Museum of Los Angeles County in Los Angeles, California September 10, 2015. (Photo by Mario Anzuoni/Reuters)





A guest interacts with a CT scan graphic during a media preview for the exhibit “Mummies: New Secrets from the Tombs” at the Natural History Museum of Los Angeles County in Los Angeles, California September 10, 2015. (Photo by Mario Anzuoni/Reuters)





A coffin lid is seen on display during a media preview for the exhibit “Mummies: New Secrets from the Tombs” at the Natural History Museum of Los Angeles County in Los Angeles, California September 10, 2015. (Photo by Mario Anzuoni/Reuters)





A forensically reconstructed sculpture depicting the Gilded Lady, a mummy from Roman-era Egypt, is seen on display during a media preview for the exhibit “Mummies: New Secrets from the Tombs” at the Natural History Museum of Los Angeles County in Los Angeles, California September 10, 2015. (Photo by Mario Anzuoni/Reuters)





A mummy known as the Gilded Lady is seen on display during a media preview for the exhibit “Mummies: New Secrets from the Tombs” at the Natural History Museum of Los Angeles County in Los Angeles, California September 10, 2015. (Photo by Mario Anzuoni/Reuters)





Fireworks explode above St. Basil's cathedral during the “Spasskaya Tower” international military music festival at Moscow's Red Square, Russia, September 10, 2015. (Photo by Maxim Shemetov/Reuters)





Members of the Southern Military District headquarters Band from Russia perform during the “Spasskaya Tower” international military music festival, with the St. Basil's Cathedral seen in the background, at Moscow's Red Square, Russia, September 10, 2015. (Photo by Maxim Shemetov/Reuters)





Members of the Guard of Honor of the Presidential Regiment from Russia perform during the “Spasskaya Tower” international military music festival at Moscow's Red Square, Russia, September 10, 2015. (Photo by Maxim Shemetov/Reuters)





Fireworks explode above St. Basil's cathedral during the “Spasskaya Tower” international military music festival at Moscow's Red Square, Russia, September 10, 2015. (Photo by Maxim Shemetov/Reuters)





The Royal stiltwalkers of Belgium perform during the International Military Music Festival “Spasskaya Tower” on Moscow's Red Square, Russia, 09 September 2015. The festival runs until 13 Sepember. (Photo by Maxim Shipenkov/EPA)





Firefighters wade through floodwaters as flash flooding swamped a street after a heavy thunderstorm moved through New London, Conn., Thursday, September 10, 2015. (Photo by Sean D. Elliot /The Day via AP Photo)





French artists Ella and Pitr have created one of the world’s largest murals for Norway’s NuArt street art festival in Klepp, Norway September 10, 2015. The artwork, named “Lilith and Olaf”, stands at 21,000 sq m. (Photo by Ella Pitr/REX Features/Shutterstock)





Workers secure a giant Lenin head, which is carried by a crane, in a forest in Berlin, Germany, 10 September 2015. The head of the Lenin monument, which was dismantled in 1991, will be part of the exhibition “Enthuellt. Berlin und seine Denkmaeler” (“Revealed. Berlin and its monuments”). (Photo by Wolfgang Kumm/EPA)





Two employees remove sand from the beard and the eyes of the giant Lenin head in Berlin, Germany, Thursday September 10, 2015. The 3,900-kilogram (8,600-pound) head of Vladimir Lenin that was removed from a Berlin square in 1991 has been unearthed for a new exhibition. The granite head was part of a 19-meter (62-foot) Lenin figure unveiled in 1970 on East Berlin's Leninplatz, or Lenin Square. After German reunification the statue was removed, broken into 129 pieces and buried in woods on the city's southeastern edge. (Photo by Gregor Fischer/DPA via AP Photo)





Genevieve Morrison Haley of Canada (BLUE) in action against Valentina Ivanovna Islamova Brik of Russia (RED) in their Women's Freestyle 48 kg bronze medal match at the Wrestling World Championships in Las Vegas, Nevada, USA, 09 September 2015. Morrison Haley won the match and the bronze medal. (Photo by Paul Buck/EPA)





Thousands of taxi drivers block the main roads of downtown Sao Paulo, Brazil, 09 September 2015. The demonstrators were protesting against ride-sharing service “Uber”. (Photo by Leo Barrilari/EPA)





In this August 15, 2014, file photo, Pennsylvania's 13-year-old Mo'ne Davis delivers in the first inning against Tennessee during a baseball game in United States pool play at the Little League World Series tournament in South Williamsport, Pa. Little League is getting younger. The organization announced Thursday, September 10, 2015, it is changing its age requirement, phasing out 13-year-olds from the league. (Photo by Gene J. Puskar/AP Photo)





Hot air balloons take off in Warstein, Germany, 09 September 2015. Tens of thousands of visitors are expected to attend the annual hot-air balloon festival that runs until 12 September, according to organizers. (Photo by Bernd Thissen/EPA)





In this March 1, 2001, file photo, Ann Rice walks passed earthquake damage in Tumwater, Wash. University of Washington researchers are testing an earthquake alert system as the Pacific Northwest prepares for the day when a 600-mile-long fault line looming off the coast unleashes a catastrophic earthquake and tsunami. The fault line hasn't produced a major quake since 1700, but seismologists say one could happen in our lifetimes. Fears of such a quake – heightened after the devastating 2011 Japanese temblor – have fueled the development of the computer alert system that officials hope will save lives and protect critical infrastructure by giving a precious heads-up to get ready. The alerts are now going to companies such as Boeing and Microsoft as well as hospitals, utilities and emergency management agencies in Oregon, Washington and British Columbia, who are beginning to think about how they would respond. (Photo by Dean J. Koepfler/The News Tribune via AP Photo)





In this February 7, 2012 file photo, Syrian President Bashar Assad, right, meets with Russian Foreign Minister Sergey Lavrov in Damascus, Syria. Russia has been sending military forces into Syria in recent days, Israel's defense chief announced Thursday, as Moscow hinted at broader action to bolster President Bashar Assad's embattled army following a string of battlefield losses. The increased Russian activity in Syria reflects Moscow's deep concerns that its longtime ally is on the brink of collapse, as well as hopes by President Vladimir Putin that a common battle against Islamic State extremists can improve Russia's ties with the West, strained over Ukraine. But the strategy could be risky – and unless Russia sends large numbers of troops, halting the territorial gains made by Islamic militants could prove tough. Israeli Defense Minister Moshe Yaalon told reporters Thursday that the Russian buildup appears to be limited for the time being. He said military advisers, technicians and security guards have arrived in recent days, with the main goal of setting up an air base near the coastal town of Latakia that could be used to stage strikes on Islamic State fighters. (Photo by AP Photo/Pool)





Gunships perform at the opening ceremony of the Tianjin International Helicopter Exhibition in a helicopter base of Aviation Industry Corporation of China in the Airport Area of China Pilot Free Trade Zone of Tianjin, north China, north China, September 9, 2015. The exhibition displayed 56 helicopters and attracted 366 enterprises. (Photo by Zhang Chenlin/Xinhua/Sipa USA)





Muslim pilgrims circumambulate around the Kaaba, the cubic building at the Grand Mosque in the Muslim holy city of Mecca, Saudi Arabia. Thousands of Muslims from all over the world have arrived in Saudi Arabia for the annual hajj, or pilgrimage, to Mecca. Every Muslim is required to perform the hajj, or pilgrimage, to Mecca at least once in his or her lifetime if able to do so. (Photo by Amr Nabil/AP Photo)





South Korean soldiers play the roles of both South Korean forces and invading North Korean soldiers during a re-enactment of the 1950 battle of Nakdong River to mark the 65th anniversary at the town of Waegwan in Chilgok county on September 10, 2015. The Korean peninsula is the world's last Cold War frontier as Stalinst North Korea and pro-Western South Korea have been technically at war since the 1950-53 Korean War. (Photo by Jung Yeon-Je/AFP Photo)





South Korean army special forces members demonstrate their martial art skills as part of a reenactment event during Naktong River Battle re-enactment in Waegwan, South Korea, Thursday, September 10, 2015. South Korean Defense Ministry re-enacted one of the important battles as part of commemoration events for the 65th anniversary of the Korean War. (Photo by Ahn Young-joon/AP Photo)





Simona Halep of Romania plays against Victoria Azarenka of Belarus during their 2015 US Open Women's Singles – Quarterfinals at the USTA Billie Jean King National Tennis Center September 9, 2015 in New York. (Photo by Timothy A. Clary/AFP Photo)