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)
Lindsay Mann (L) and Anabella Mowbray kiss as they take photos of themselves laying in the confetti on 7th Avenue in Times Square on New Year's Eve in New York January 1, 2015. (Photo by Carlo Allegri/Reuters)
A police officer patrols as people party on a street as pubs shut for the night due to tier 3 restrictions in Soho, as the spread of the coronavirus disease (COVID-19) continues in London, Britain, December 15, 2020. (Photo by Henry Nicholls/Reuters)
Pictured on December 9, 2022 during the Friday sunset on Martello beach at Clacton in Essex is some light painting with fire created by spinning fire with a 21-second exposure. (Photo by Kevin Jay/Picture Exclusive)
A Land Rover Discovery has been crashed and abandoned inside a canal lock in Tipton, United Kingdom on Monday morning, November 14, 2022. There were no reported injuries and the car is expected to be removed on Tuesday. (Photo by Katie Stewart/Alamy Live News)
A person looks at Australian artist Ron Muecks large-scale installation “Mass” which comprises more than 100 hand-cast skulls that collectively weigh approximately 5000 kilograms at an exhibition at the National Gallery of Victoria (NGV) in Melbourne on May 18, 2022. (Photo by William West/AFP Photo)
Dark clouds hang over the Great Belt Bridge connecting Nyborg and Halsskov, Denmark, on June 26, 2023. (Photo by Mads Claus Rasmussen/Ritzau Scanpix via AFP Photo)