In this file photo taken Thursday, January 24, 2002, a Congolese man pushes his bicycle across lava rock covered in steam, after a rain storm in the eastern Congolese town of Goma. Traumatized farmers are slowly returning to fields decimated by the 2002 eruption of Mount Nyiragongo in eastern Congo. Flowing lava flattened more than 30 percent of the city of Goma, 20 kilometers away. (Photo by Karel Prinsloo/AP Photo)





A sales assistant (R) applies makeup on a customer at a cosmetics counter at a shopping mall in Singapore June 7, 2013. (Photo by Edgar Su/Reuters)





A girl balances a bowl with an old Nigerian naira note printed on, in Bichi village, on the outskirt of Nigeria's northern city of Kano July 25, 2012. (Photo by Akintunde Akinleye/Reuters)





Houthi fighters carry their weapons as they attend a tribal gathering in Sanaa, Yemen June 20, 2016. (Photo by Khaled Abdullah/Reuters)





A woman carries her child as she walks along the streets in Kinshasa, capital of the Democratic Republic of the Congo, June 21, 2016. (Photo by Jean Robert N'kengo/Reuters)





Israeli policemen search for suspects near the scene of a shooting incident in Tel Aviv, Israel January 1, 2016. (Photo by Baz Ratner/Reuters)





A circular staircase is seen in the U.S. Supreme Court building in Washington, U.S. January 28, 2016. (Photo by Jonathan Ernst/Reuters)





A commercial motorcyclist rests on a motorcycle at Agege district in Lagos, Nigeria June 22, 2016. (Photo by Akintunde Akinleye/Reuters)





Guerrilla fighters the Revolutionary Armed Forces of Colombia (FARC) pose with their weapons after a patrol in the jungle near the town of Miraflores, Colombia, August 7, 1998. (Photo by Henry Romero/Reuters)





A Colombian guerilla woman holds her AK-47 as she takes part in a line of rebels during an army parade of fighters of the FARC in Villa Colombia camp near San Vicente del Caguan, Caqueta province, Colombia, April 29, 2000. (Photo by Jose Miguel Gomez/Reuters)





A plane flies overhead as an Israeli soldier stands guard near the Israeli-Egyptian border August 19, 2011. (Photo by Ronen Zvulun/Reuters)





U.S. property mogul Donald Trump gestures during a media event on the sand dunes of the Menie estate, the site for Trump's proposed golf resort, near Aberdeen, Scotland, Britain May 27, 2010. (Photo by David Moir/Reuters)





A Baxter robot of Rethink Robotics picks up a business card as it performs during a display at the World Economic Forum (WEF), in China's port city Dalian, Liaoning province, China, September 9, 2015. (Photo by Jason Lee/Reuters)





A container ship is pictured docked at the Colombo South Harbor, funded by China, in Sri Lanka June 25, 2016. (Photo by Dinuka Liyanawatte/Reuters)





A five-metre pharaoh found at Naukratis’s sister port, Thonis-Heracleion. Heracleion also known as Thonis was an ancient Egyptian city near Alexandria whose ruins are located in Abu Qir Bay, currently 2.5 km off the coast, under 10 m (30 ft) of water. Its legendary beginnings go back to as early as the 12th century BC, and it is mentioned by ancient Greek historians. Its importance grew particularly during the waning days of the Pharaohs – the late period, when it was Egypt's main port for international trade and collection of taxes. Heracleion was originally built on some adjoining islands in the Nile Delta, and was intersected by canals. It possessed a number of harbors and anchorages, was the sister city of Naucratis, and was superseded by Alexandria. (Photo by Christoph Gerigk/Franck Goddio/Hilti Foundation)





A third century pharaoh head on the ocean floor at Thonis-Heracleion. (Photo by Christoph Gerigk/Franck Goddio/Hilti Foundation)





A migrant from the stateless Rohingya minority eats food dropped by a Thai army helicopter after he jumped to collect the supplies at sea from a boat drifting in Thai waters on May 14, 2015. (Photo by Christophe Archambault/AFP Photo)





A full moon rises behind Glastonbury Tor as people gather to celebrate the summer solstice on June 20, 2016 in Somerset, England. Tonight's strawberry moon, a name given to the full moon in June by Native Americans because it marks the beginning of strawberry picking season, last occurred on the solstice on June 22, 1967 and it will not happen again on the summer solstice for another 46 years until June 21, 2062. (Photo by Matt Cardy/Getty Images)





In this Wednesday, June 8, 2016 photo, Joe Giles, an actor portraying a zombie in “The Walking Dead”, demonstrates how to walk like a zombie during a walker boot camp at Universal Studios Hollywood in Los Angeles. (Photo by Jae C. Hong/AP Photo)





A tourist holds a traditional fan as she stands in front of a view of Hong Kong's skyline from the Peak on June 22, 2016. Hong Kong was named the world's most expensive city for expatriates, reports said on June 22 citing an annual survey. (Photo by Anthony Wallace/AFP Photo)





A man browses through books at a book stall as his dog rests on his shoulders, along a street in Beijing on June 16, 2016. (Photo by Wang Zhao/AFP Photo)





Aung Than Oo, a former soldier who lost his leg after he stepped on a landmine during fighting against ethnic armed groups, sits on his motorbike outside Yangon, Myanmar May 17, 2016. (Photo by Soe Zeya Tun/Reuters)





In this July 27, 2013, file photo, North Korean soldiers turn and look towards leader Kim Jong Un as they carry packs marked with the nuclear symbol as they parade during a ceremony marking the 60th anniversary of the Korean War armistice in Pyongyang, North Korea. Han Song Ryol, director-general of the department of U.S. affairs at North Korea's Foreign Ministry told The Associated Press on Friday that his country is now a nuclear threat to be reckoned with, and Washington can expect more nuclear tests and missile launches like the ones earlier this week as long as it attempts to force his government's collapse through a policy of pressure and punishment. (Photo by Wong Maye-E/AP Photo)





This picture taken on May 21, 2016 shows professional wrestlers fighting each other during the Wrestling City Asia organized by Singapore Pro Wrestling at a stadium in Kuala Lumpur. Kenneth Thexeira is a mild-mannered writer for an interior-design magazine by day, but on certain nights his alter ego bursts forth in golden tights and a baby-blue cape: enter “The Eurasian Dragon”. (Photo by Mohd Rasfan/AFP Photo)