Czech Republic's Stepan Lukes reacts after the puck gets stuck in his helmet grill during the Euro Hockey Tour match between Austria and Czech Republic in Ostrava, Czech Republic on May 1, 2022. (Photo by David W. Cerny/Reuters)

Children wearing bear fur costumes dance during a parade in Comanesti, Romania, Friday, December 30, 2022. In pre-Christian rural traditions, dancers wearing colored costumes or animal furs, toured from house to house in villages singing and dancing to ward off evil. (Photo by Vadim Ghirda/AP Photo)

Bryan Adams took the pictures for next year’s Pirelli calendar, which features fellow musicians including Cher, Rita Ora, Iggy Pop and the American rapper Saweetie, above, as it depicts a typical day in the life of a touring performer. (Photo by Bryan Adams/Pirelli)

Hannah Rice, 18, jumps from a stump after posing for a photograph next to a large bust of President Franklin D. Roosevelt while touring busts of U.S. presidents in Williamsburg, Va. on March 30, 2019. The statues were once part of an attraction called Presidents Park, which has since closed. (Photo by Matt McClain/The Washington Post)

American singer-songwriter Taylor Swift speaks to a kid onstage during “Taylor Swift | The Eras Tour” at Johan Cruijff Arena on July 04, 2024 in Amsterdam, Netherlands. (Photo by Carlos Alvarez/Getty Images for TAS Rights Management)

Son doong cave is a cave in Phong Nha-Kẻ Bàng National Park, Bố Trạch district, Quảng Bình Province, Vietnam. Currently the biggest known cave in the world, the cave is located near the Laos-Vietnam border. Inside is a large, fast-flowing underground river.
In early August 2013, the first tourist group explored the cave on a guided tour at a cost of US$3,000 each. The group had six members from Australia, Norway, Russia and USA and spent 7 days and 6 nights for the tour. Next exploration trips will be arranged.

U.S. first lady Melania Trump steps out of her motorcade vehicle as she departs Washington for a tour of several African countries from Joint Base Andrews, Maryland, U.S., October 1, 2018. (Photo by Carlo Allegri/Reuters)

A supporter dressed as flamingo cheers on the riders during the 12th stage of the 102nd Giro d'Italia – Tour of Italy – cycle race, 158kms from Cuneo to Pinerolo on May 23, 2019. (Photo by Marco Bertorello/AFP Photo)