A tourist walks inside the Ice Palace glacier hollow at Hintertux glacier, located at around 3250 meters above sea level, in Zillertal, Austria, 02 March, 2016. The hollow's temperature remains constant at 0 degrees Celsius, in summer and winter alike, and is also used by the University of Innsbruck for scientific research projects. (Photo by Lisi Niesner/EPA)

Britain Horse Racing, Royal Ascot, Ascot Racecourse on June 17, 2016. Chelsea pensioners with a racegoer posing between them. (Photo by Toby Melville/Reuters/Livepic)

Two sheep fight in a competition in Zhangjiakou, Hebei province, China on August 1, 2017. (Photo by Reuters/China Stringer Network)

A tourist train is decorated with Christmas lights in Bogotá, Colombia on December 10, 2017. (Photo by Jaime Saldarriaga/Reuters)

Vlada Nikolchenko of Ukraine performs with the ribbon during the 36th European Rhythmic Gymnastics Championships in Kyiv, Ukraine, Sunday, November 29, 2020. Athletes from 23 countries participate in the championship in Kyiv. (Photo by Efrem Lukatsky/AP Photo)

People wait for Pope Francis to celebrate mass at the Franso Hariri Stadium in Irbil, Kurdistan Region of Iraq, Sunday, March 7, 2021. The Vatican and the pope have frequently insisted on the need to preserve Iraq's ancient Christian communities and create the security, economic and social conditions for those who have left to return (Photo by Andrew Medichini/AP Photo)

Dozens of crocodiles are seen in an inactive farm in the Jordan Valley near the Israeli Petzael settlement in the West Bank on January 18, 2021. Hundreds of crocodiles are stranded in a farm after an Israeli businessmen lost his business as Israel passed a law in 2012 defining the crocodile as a protected animal, and banning raising the animals for sale as meat or merchandise. (Photo by Menahem Kahana/AFP Photo)

Swimmers in fancy dress take part in a Christmas Day dip at Exmouth, Devon, England, Saturday, December 25, 2021. (Photo by Ben Birchall/PA Wire via AP Photo)