Pamukkale, Turkey, is home to these terrace pools, formed by the build-up of carbonate mineral from the warm water flowing from the thermal springs above. (Photo by Image Courtesy of Jennifer Hayes/Getty Images)

Indonesian Air Force soldiers from the Paskhas corps shout slogans during a rehearsal for a ceremony marking the 70th anniversary of Indonesia's military in Cilegon, Banten province, October 3, 2015. Indonesia will celebrate the anniversay of its military on October 5. (Photo by Reuters/Beawiharta)

Worshippers of the Black Christ of Portobelo look at the statue during the annual celebratory pilgrimage in Portobelo, in the province of Colon October 21, 2015. Thousands of devotees gather at the Festival of the Black Christ every year to celebrate Christ's miracles. (Photo by Carlos Jasso/Reuters)

When it opened in 1955, the Grande Hotel in the Indian Ocean city of Beira was one of the most luxurious in Africa. Photojournalist Fellipe Abreu documents the lives of the 3,500 people who now fill this long-closed hotel to capacity. (Photo by Fellipe Abreu/The Guardian)

A photographer takes pictures as the sun rises over the city of Kronberg near Frankfurt, Germany, Monday, November 4, 2024. (Photo by Michael Probst/AP Photo)

Seized plastic handguns which were created using 3D printing technology are displayed at Kanagawa police station in Yokohama, south of Tokyo, in this photo taken by Kyodo May 8, 2014. Yoshimoto Imura became the first man to be arrested in Japan for illegal possession of two guns he created himself using 3D printing technology, Japanese media said on Thursday. The 27-year-old, a college employee in the city of Kawasaki, was arrested after police found video online posted by Imura claiming to have produced his own guns. Gun possession is strictly regulated in Japan. Police raided Imura's home and found five guns, two of which could fire real bullets, Japanese media said. (Photo by Reuters/Kyodo)

In this October 15, 2014 file photo, Katsu Nakamura, sky division manager for Yamaha USA, moves the RMax unmanned helicopter into position before a demonstration of its aerial application capabilities at the University of California, Davis' Oakville Station test vineyard in Oakville, Calif. Researchers at UC Davis have been studying the effectiveness of the drone's ability for spraying pest control and nutritional materials on the test vineyard in California's Napa Valley. (Photo by Rich Pedroncelli/AP Photo)

In this Thursday, January 29, 2015 photo, the backseat of a rented 1957 Buick is packed to the brim with flowers, to be transported to Havana from San Antonio de los Banos, Cuba. Every Monday and Thursday morning, self-employed flower vendor Yaima Gonzalez Matos leaves her home to visit a dozen farmers who sell her sunflowers, roses, lilies and other blooms. She loads the flowers into the rented American classic and delivers to customers in the capital. (Photo by Ramon Espinosa/AP Photo)