Greek actress Katerina Lehou, playing the role of High Priestess, lights a torch during the dress rehearsal for the Olympic flame lighting ceremony for the Rio 2016 Olympic Games at the site of ancient Olympia in Greece, April 20, 2016. Fire spurted from the concave mirror as a priestess, kneeling in her long, pleated dress before a ruined Greek temple, focused the blazing sun's rays on her metal torch. Come rain or shine on Thursday's official lighting ceremony, Rio de Janeiro has now secured its Olympic flame, which will burn in the main Olympic stadium throughout the Aug. 5-21 games. (Photo by Yannis Behrakis/Reuters)

A moon appears behind a windmill a day before the supermoon is full on September 8, 2014 in Consuegra, in Toledo province, Spain. Consuegra belongs to a region made famous by the novel “Don Quijote de la Mancha” (Don Quixote) writed by Miguel De Cervantes. Some of the windmills belong to the 16th century. (Photo by Pablo Blazquez Dominguez/Getty Images)

Jordan Matter showcases their athletic prowess in everyday situations such as a martial artist shaving with a samurai sword, an ice hockey goalie shopping and a gymnast balancing from a street sign. Photo: “River View” – Jacob Jonas & Jill Wilson – Acro Yoga Specialists. (Photo by Jordan Matter)

Photographer Lori Nix hand-crafted dioramas are fictional scenes of a post-apocalyptic world in which plants and decay reclaim both grand and mundane structures. Each structure is built in Nix's living room and can take over half a year to build. Photo: Library, 2007. Photographer Lori Nix says this is the most popular image she has made for this project that she calls “The City”. (Photo by Lori Nix)

The Soyuz TMA-11M capsule with the International Space Station (ISS) crew members Japanese astronaut Koichi Wakata, Russian cosmonaut Mikhail Tyurin and U.S. astronaut Rick Mastracchio lands south-east of the town of Dzhezkazgan in central Kazakhstan, May 14, 2014. The first Japanese to command a space mission and crewmates from the United States and Russia landed safely in Kazakhstan on Wednesday, wrapping up a 188-day stay aboard the International Space Station. (Photo by Dmitry Lovetsky/Reuters)

Thai office workers walk past armed soldiers standing guard outside the Shinawatra Tower Two in Bangkok, Thailand, 20 May 2014. Thai army Chief Prayuth Chan-ocha early on 20 May 2014, declared martial law giving the military full control to prevent further protest-related violence in the country. The statement was issued about 3 am on 20 May (2000 GMT), according to local media reports. Prayuth has the authority to declare martial law without the consent of the government, which has had caretaker status since 09 December 2013. Thailand has been wracked by six months of non-stop protests seeking to topple the government. At least 25 people have died in political-related violence and more than 700 injured. (Photo by Narong Sangnak/EPA)

A miner sits front of the statue of St. Barbara, saint of the miners, during last working day at Hungary's last hard coal deep-cast mine at Markushegy December 23, 2014.The underground mine, west of the capital city Budapest, has to stop producing coal at the end of this year in line with a European Union effort to shut down uncompetitive hard coal mines. (Photo by Laszlo Balogh/Reuters)

Dogs rest during the Sedivackuv Long dog sled race in Destne v Orlickych horach January 23, 2015. Each year, racers from all over Europe arrive at the village of Destne in the Orlicke mountains in Czech Republic to take part in the race. (Photo by David W. Cerny/Reuters)