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)

Young Slovaks dressed in traditional costumes throw a bucket of water at a girl as part of Easter celebrations in the village of Trencianska Tepla, Slovakia, April 9, 2012. Slovakia's men splash women with water to symbolize youth, strength and beauty for the upcoming spring season. (Photo by Samuel Kubani/AFP)

A biker passes by a pair of mailboxes in the Capitol Hill neighborhood November 6, 2012 in Denver, Colorado. Colorado is considered by most experts to be one of the key battleground state in this year's presidential election. (Photo by Marc Piscotty/AFP Photo)

A dragon dance performer greets a traveler from China at the Ninoy Aquino International Airport, in Pasay City, Metro Manila, Philippines on January 24, 2023. (Photo by Lisa Marie David/Reuters)

A child buys goods from a partially submerged shop in Companiganj of Sylhet district on June 20, 2024. In Sylhet, lashing rain and rivers swollen by flooding upstream in India also swamped heavily populated areas. (Photo by Munir Uz Zaman/AFP Photo)

A woman rides a mechanical bull while tailgating before a college football game between the Arizona Wildcats and West Virginia Mountaineers at the University of Arizona in Tucson, Arizona on October 26, 2024. (Photo by Ernesto Benavides/AFP Photo)

Queen of drums, Viviane Araujo of Salgueiro performs during 2024 Carnival parades at Sapucai Sambodrome on February 11, 2024 in Rio de Janeiro, Brazil. (Photo by Buda Mendes/Getty Images)

A demonstrator wearing a The Martians from Sesame Street costume holds a placard depicting U.S. President Donald Trump, U.S. Secretary of Defense Pete Hegseth, U.S. Attorney General Pam Bondi, U.S Vice President JD Vance, U.S. Homeland Security Secretary Kristi Noem, White House Deputy Chief of Staff Stephen Miller and U.S. House Speaker Mike Johnson as people march down the National Mall to take part in a “No Kings” protest against U.S. President Donald Trump's policies, in Washington, D.C., U.S., October 18, 2025. (Photo by Leah Millis/Reuters)