On the western side of Mount Hood lies the longest glacier cave system in the contiguous United States. In 2012, these caves were mapped to a combined length of 7,166.8 feet by cave explorers Brent McGregor and Eddy Cartaya. Currently, the total passage length is hundreds of feet less. Glaciers are frozen rivers; they are always moving and changing... (Photo and caption by Josh Hydeman)

An Iraqi boy sits next to cats for sale at the Ghazl Market in central Baghdad on November 20, 2020. (Photo by Ahmad Al-Rubaye/AFP Photo)

A displaced Palestinian plays on a swing at the beach, amid the ongoing conflict between Israel and the Palestinian Islamist group Hamas, in Rafah in the southern Gaza Strip on January 31, 2024. (Photo by Mohammed Salem/Reuters)

“The Glimmer Twins”, a statue of Rolling Stones Sir Mick Jagger and Keith Richards created by sculptor Amy Goodman (centre), is unveiled at One Bell Corner in Dartford, Essex, UK on Wednesday, August 9, 2023. The statue has been commissioned by Dartford Borough Council to celebrate two of the town's most famous former residents. (Photo by Yui Mok/PA Images via Getty Images)

This photo taken on October 30, 2022 shows people in costumes walking on the street during a celebration ahead of Halloween in Guangzhou in China's southern Guangdong province. (Photo by AFP Photo/China Stringer Network)

A child walks to an installation made from fallen leaves by college students, in shape of a sofa, to call for people's attention to environment protection, in Hangzhou, Zhejiang province, China, December 6, 2016. (Photo by Reuters/China Daily)

A counter-protester grabs the flag of a pro-police demonstrator during a rally, following weeks of protests against racial inequality in the aftermath of the death in Minneapolis police custody of George Floyd, in Boston, Massachusetts, U.S. June 27, 2020. (Photo by Brian Snyder/Reuters)

A worker stands next to a Southern Two-toed Sloth at the Sloth and Friends Studio inside Hong Kong Ocean Park on August 3, 2023 in Hong Kong, China. (Photo by Vernon Yuen/Rex Features/Shutterstock)