Ngorongoro Crater (Tanzania). At 610m deep and 260 sq km, this is the largest unflooded caldera in the world. A blue-green vision from above it's a haven for engangered wildlife and Maasai livestock. The crater was formed three million years ago when a giant volcano, which could have been as high as Kilimanjaro, exploded and collapsed. The caldera formed the concentric fractures in the crust cracked down to a magma reservoir deep underground. (Photo by John Bryant/Getty Images)

Cha Huilan, a 40-year old Lisu woman, and her daughter leave Lazimi village with a zipline across the Nu River in Nujiang Lisu Autonomous Prefecture in Yunnan province, China, March 24, 2018. Chinese mountain villagers, cut off from shops and churches by a raging river, use a zipline to cross its violent rapids and jagged rocks. (Photo by Aly Song/Reuters)

Donald Trump is flanked by Playmates at a party celebrating Playboy magazine's 45th anniversary at the Life Club in New York on December 3, 1998. (Photo by Richard Corkery/NY Daily News Archive via Getty Images)

A member of the Central Industrial Security Force (CISF) reacts as her mother (L) places a badge with stars on the uniform during the 34th batch assistant commandants pipping ceremony at the National Industrial Security Academy (NISA) in Hyderabad on October 29, 2021. (Photo by Noah Seelam/AFP Photo)

Icelandic horses feed on hay during a snow storm at a stud farm in Wehrheim near Frankfurt, Germany, Wednesday, December 14, 2022. (Photo by Michael Probst/AP Photo)

A Chinese woman wears traditional dress, or hanfu, as she has her picture taken by friends next to the first blossoms of spring at a park on March 21, 2021 in Beijing, China. (Photo by Kevin Frayer/Getty Images)

Stefania and Mariah play with a hose in South Norwood, United Kingdom on June 1, 2021. (Photo by Joe Plimmer/The Guardian)

Nose to Nose; Human/Nature winner. “Doug Gimesy was documenting work at the Joey and Bat Sanctuary near Melbourne when he met a wombat (Vombatus ursinus) whose mother had been killed by a car. Gimesy watched as a young veterinary student bottle-fed the orphaned joey, then touched her nose to the joey’s in a tender moment of interspecies bonding”. (Photo by Doug Gimesy/BigPicture)