Nepal's indigenous women in traditional attire gather to participate in a rally to mark the International Day of the World's Indigenous People in Kathmandu, Nepal, Friday, August 9, 2024. (Photo by Niranjan Shrestha/AP Photo)

A violent eruption spews ash more than a kilometer into the sky above Mount Etna in Sicily on February 23, 2021. (Photo by Marco Restivo/Barcroft Studios via Getty Images)

A child dressed in a Santa Claus costume reacts, on the day Palestinian Christians attend an Orthodox Christmas Mass at the Greek Orthodox Saint Porphyrius Church, amid the ongoing conflict between Israel and Hamas, in Gaza City on January 7, 2025. (Photo by Dawoud Abu Alkas/Reuters)

Raquel Poti performs on stilts during the Amigos da Onca street Carnival party, in Rio de Janeiro, Brazil, Saturday, February 10, 2024. (Photo by Bruna Prado/AP Photo)

Rhiannan Iffland of Australia competes in the women's 20m platform final at the World Aquatics Championships in Singapore, Saturday, July 26, 2025. (Photo by Vincent Thian/AP Photo)

Lake Baikal is the world's oldest lake, at 25 million years (possibly older), and deepest, averaging 744.4 metres (2,442 ft).

Located in the south of the Russian region of Siberia, between Irkutsk Oblast to the northwest and the Buryat Republic to the southeast, it is the most voluminous freshwater lake in the world, containing roughly 20% of the world's unfrozen surface fresh water.

Legend by Damien Hirst in the gardens of Chatsworth House on September 9, 2011 in Chatsworth, England. The never before seen work by Hirst is part of the Beyond Limits exhibition of modern and contemporary sculpture displayed in the gardens of Chatsworth by Sotherby's between 9th September to 30th October 2011. (Photo by Christopher Furlong/Getty Images)

Participants compete in a wife-carrying championship in Tapiobicske, Hungary, August 7, 2021. Some 40 Hungarian husbands, with their wives on their backs, clambered over rough terrain on Saturday in the nation's second wife-carrying contest. (Photo by Marton Monus/Reuters)