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)

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)

An Chelsea supporter takes pictures next to the giant inflatable replica of the UEFA Champions League trophy placed at Aliados Avenue in Porto, Portugal, 27th May 2021. Porto hosts the UEFA Champions League final between Manchester City and Chelsea in 29th May 2021. (Photo by Jose Coelho/EPA/EFE)

Japan's Mayumi Someya (R) competes against Venezuela's Claudymar Garces Sequera in the women's kumite -61kg elimination round of the karate competition during the Tokyo 2020 Olympic Games at the Nippon Budokan in Tokyo on August 6, 2021. (Photo by Carl Recine/Reuters)

A three-day-old Bengal tiger calf is cared for after being fed at the National Zoo in Masaya on August 30, 2021. A female Bengal tiger calf was born in the National Zoo of Nicaragua, the fourth of this species in risk of extinction born in captivity in the country, and is under special care due to a limited breastfeeding capacity of the mother. (Photo by Inti Ocon/AFP Photo)

Jesus Taborda and Sabrina Amuchastegui compete in the final round of the Tango World Championship stage category, in Buenos Aires, Argentina, Saturday, September 25, 2021. (Photo by Natacha Pisarenko/AP Photo)

A blooming cherry tree is seen along the Tidal Basin on Sunday March 20, 2022 in Washington, DC. As Covid-19 precautions begin to lift around the country large crowds are able to once again descend upon the region for the blossoming cherry trees. (Photo by Matt McClain/The Washington Post)

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)