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 model presents a creation by Indian designer Amit Aggarwal during the FDCI India Couture Week in New Delhi on July 28, 2024. (Photo by Sajjad Hussain/AFP Photo)

The sea leopard. The Antarctic Peninsula. (Photo by Paul Nicklen)

Space Shuttle Discovery is towed from the shuttle landing facility to the orbiter processing facility at Kennedy Space Center on April 20, 2010 in Cape Canaveral, Florida. Discovery's landing attempts at KSC were scrubbed yesterday due to unacceptable weather conditions. Discovery is returning from a successful mission to the International Space Station. (Photo by Matt Stroshane/Getty Images). CAPE CANAVERAL, FL – APRIL 20 2010

A sand carver works on a sculpture during the Sand Sculpture Festival “Dreams” in Ostend, Belgium on June 18, 2019. (Photo by Yves Herman/Reuters)

This photo taken on November 6, 2023 shows people posing for photos next to the statue of “Hachiko” in front of Shibuya station in central Tokyo, ahead of the 100th anniversary of the legendary dog's birth this month. A century since its birth, the tale of the loyal companion who had waited at the Shibuya train station for its master to come home – not knowing he had already died – continues to inspire the public, who have made the statue a singular landmark at a glitzy hub of Tokyo's street culture. (Photo by Richard A. Brooks/AFP Photo)

Women in Kimono holding an umbrella walk on a street at Ginza shopping district in Tokyo, Japan, March 31, 2016. (Photo by Yuya Shino/Reuters)

Hundreds of Nigerians celebrate at an intersection in the flashpoint northern city of Kaduna on March 31, 2015 the victory of main opposition All Progressives Congress (APC) presidential candidate Mohammadu Buhari. (Photo by Nichole Sobecki/AFP Photo)