Competitors take part in the 8th annual World Gravy Wrestling Championships at the Rose n Bowl Pub in Bacup, north west England on August 31, 2015. Contestants must participate in fancy dress and wrestle in a pool of Lancashire Gravy for 2 minutes whilst being scored for a variety of wrestling moves. (Photo by Oli Scarff/AFP Photo)

Alpine Skiing, FIS Alpine Skiing World Cup, Men's Parallel Giant Slalom, Alta Badia, Italy on December 19, 2016. Hostesses take a bath in a Jacuzzi pool during the race. (Photo by Stefano Rellandini/Reuters)

(From L) US musician Jon Batiste, US musician Trent Reznor and English musician Atticus Ross, winners of the award for Original Score for “Soul”, pose in the press room at the Oscars on April 25, 2021, at Union Station in Los Angeles. (Photo by Chris Pizzello/Pool via AFP Photo)

Fiji's outside centre and captain Waisea Nayacalevu celebrates scoring his team's first try during the France 2023 Rugby World Cup Pool C match between Wales and Fiji at Stade de Bordeaux in Bordeaux, south-western France on September 10, 2023. (Photo by Christophe Archambault/AFP Photo)

Stage winner France Kevin Vauquelin climbs during the second stage of the Tour de France cycling race over 199.2 kilometers (123.8 miles) with start in Cesenatico and finish in Bologna, Italy, Sunday, June 30, 2024. Photo by (Etienne Garnier/Pool Photo via AP Photo)

Clemence Vieira of France saves the ball during the women's pool C beach volleyball match between Germany and France at the Paris 2024 Olympic Games in Paris, France, on July 28, 2024. (Photo by Xinhua News Agency/Rex Features/Shutterstock)

A dog jumps into a pool at the “Dogs and Fun” fair at the Westfalenhallen congress centre in Dortmund, western Germany, on May 23, 2025. Until May 25, dog breeds and dog-related shows, activities and products will be presented during the fair at the Messe Dortmund event venue. (Photo by Ina Fassbender/AFP Photo)

These otherworldly images give a rare glimpse inside caves barely ever seen by the human eye. With its peculiar pools of water and strange colored sediments, the bizarre looking tunnels of the Shakuranskaya cave could be a set straight out of a science fiction film. Found in the disputed region of Abkhazia, around 75 miles outside of Sochi, Russia, it is rumored the incredible underground chambers were formed after a huge earthquake struck the area in 1892. After causing part of a nearby mountain to collapse into the Amtkel River, it is thought the dam-like affect has created a series of interconnecting underground tunnels. Here: a large pool of water inside one of the tunnels. (Photo by Vladimir Mulde/Caters News)