Cave Diver, Anhumas Abyss, Bonito, Brazil: The Anhumas Abyss is an underground cavern with a crystal-clear lake below, more than 260 feet (79 m) deep. A visitor must enter through a narrow opening at the top of the chamber and rappel into the cave. Snorkeling and scuba diving in the lake reveal amazing scenery. Distinctive, conical limestone stalagmites and stalactites occupy the lake and the surrounding area, some reaching 65 feet (20 m) high. (Photo by Marcio Cabral/Nature’s Best Photography Awards 2017)

A winter swimming enthusiast dives into a partly frozen lake in a partly frozen lake in Shenyang, in northeastern China's Liaoning province on January 25, 2022. (Photo by AFP Photo/China Stringer Network)

A general view shows the part of the skyline of Dubai covered in an early morning fog on October 5, 2015. (Photo by Rene Slama/AFP Photo)

Believers burn dried oak branches, which symbolizes the Yule log, on Orthodox Christmas Eve in front of the St. Sava temple in Belgrade, Serbia, January 6, 2016. Serbian Orthodox believers celebrate Christmas on January 7, according to the Julian calendar. (Photo by Marko Djurica/Reuters)

Dalmatian pelicans on Lake Kerkini in Greece captured over the space of one week (16-21 January 2023) by tour guide photographer Sean Weekly. The Dalmatian pelicans resemble the winged dinosaur pterodactyl as they swoop, splash and feed in the waters of Lake Kerkini in Greece. With wings outstretched, and colourful faces and beaks on display, the birds appear to be in paradise, with the awe-inspiring Kerkini mountains as a mesmerising backdrop. (Photo by Sean Weekly/Animal News Agency)

In this March 15, 2012 file photo, a Chinese woman poses for photos near a sculpture depicting a Chinese yuan note at an art district in Beijing, China. China devalued its tightly controlled currency on Tuesday, August 11,2015, following a slump in trade, triggering the yuan's biggest one-day decline in a decade. The central bank said the yuan's 1.3 percent fall was due to a change aimed at making its exchange rate controls more market-oriented. But any change raises the risk of tensions with China's trading partners. (Photo by Ng Han Guan/AP Photo)

Yolanda Sutter dresses up her dog Star to show their support for Democratic presidential candidate Mike Bloomberg at the Viva Villa restaurant in San Antonio, Texas on January 11, 2020. Democratic presidential candidate Mike Bloomberg kicks off his Texas bus tour. (Photo by Mark Felix/AFP Photo)

A hungry cow smiles for the camera in Salzburg, Austria. One of a series of funny animal mugshots taken by Chanel Cartell and Stevo Dirnberger during their travels around the globe. (Photo by Chanel Cartell/Stevo Dirnberger/Rex Features/Shutterstock)