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)

Nertil Marcelin, leader of a community group, distributes machetes to residents in an initiative to resist gangs seeking to take control of their neighborhood, in the Delmas district of Port-au-Prince, Haiti, Saturday, May 13, 2023. (Photo by Joseph Odelyn/AP Photo)

The erupting Litli-Hrútur volcano on the Reykjanes Peninsula in Iceland captured with a drone in the last decade of July 2023. (Photo by Elliot McGucken/Animal News Agency)

Revellers hit the booze cruise in the Croatian port city of Split on August 11, 2023. The hot new party town for Brits. Boat Party booze cruise with Split after dark. (Photo by Darren Fletcher)

Daniela Haralambie of Romania competes during the qualification of the women's FIS Ski Jumping World Cup competition at the Gross-Titlis Schanze in Engelberg, Switzerland, Thursday, December 14, 2023. (Photo by Philipp Schmidli/Keystone via AP Photo)

A jet ski is seen in Praia do Norte, Nazare, Portugal on January 9, 2023. (Photo by Pedro Nunes/Reuters)

The #8 DP Starworks Motorsports Ford Rley driven by Enzo Potolicchio, Ryan Dalziel, Alex Popow, Lucas Luhr and Allan McNish runs off the track during the Rolex 24 at Daytona International Speedway on January 28, 2012 in Daytona Beach, Florida. (Photo by John Harrelson/Getty Images)

Mike “The Bedfordshire Bull Botteley” (left) takes on Chris “The General” Levy during a Chessboxing bout at the Scala nightclub on March 10, 2012 in London, England. A new hybrid sport combining chess and boxing in alternate 3 minute rounds, the winner is the one who knocks out or checkmates their opponent first. (Photo by Matthew Lloyd/Getty Images)