A fisherman boats in Chao Lake where thick cyanobacteria gather on the surface on August 5, 2015 in Chaohu, Anhui Province of China. As high temperature came in summar, part of water in Anhui Province's Chao Lake breeds large tracts of cyanobacteria which not only brought pollution to sense of smell, but also affected people's life. (Photo by ChinaFotoPress/ChinaFotoPress via Getty Images)

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)

Attendants arrive at an inauguration ceremony of a Hello Kitty amusement park in Anji, Zhejiang province November 28, 2014. With an investment of $325 million, Hello Kitty Park will be China's first large scale amusement park scheduled to open to the public on New Year's day. According to state media, there are nearly 60 theme parks being built across China at the moment. (Photo by Carlos Barria/Reuters)

Three Boeing 737 fuselages lie on an embankment on the Clark Fork River after a BNSF Railway Co train derailed Thursday near Rivulet, Montana in this picture taken July 4, 2014. A train derailment in Montana this week damaged a shipment of jetliner fuselages and other large parts on its way to Boeing Co factories in Washington state from Spirit Aerosystems, Boeing said on Saturday. (Photo by Kyle Massick/Reuters)

A Femen activist, Sarah Constantin, is hanged from a noose-like rope from a Paris bridge to call attention to the large number of executions in Iran as she stages a protest against visiting Iranian President Hassan Rouhani in Paris, Thursday, January 28, 2016. A near-naked woman hanging from a noose-like rope from a Paris bridge has sent a message to visiting Iranian President Hassan Rouhani. (Photo by Zacharie Scheurer/AP Photo)

Chinese women dressed in traditional costumes and wearing masks visit a popular shopping street in Wuhan in central China's Hubei province, Saturday, January 23, 2021. A year after it was locked down to contain the spread of coronavirus, the central Chinese city of Wuhan has largely returned to normal, even as China continues to battle outbreaks elsewhere in the country. (Photo by Ng Han Guan/AP Photo)

People walk past the sculpture by artist Danger Dave titled “Damien Hirst looking for sharks” at the Swell Sculpture Festival at Currumbin Beach on the Gold Coast, Australia, 17 September 2021. The Swell Sculpture Festival is the largest outdoor art exhibition in Queensland and features 65 large scale contemporary sculptures set along Currumbin Beach. (Photo by Darren England/EPA/EFE)

In this Wednesday, April 3, 2019, photo, children play in the water on a beach as a mosque collapsed during the Sept. 28, 2018, earthquake is seen in the background in Palu, Central Sulawesi, Indonesia. The earthquake spawned a large localized tsunami that wiped out coastal areas, while liquefaction caused by the shaking turned entire neighborhoods into rivers of sludge. The disaster killed thousands of people, making it the world’s deadliest seismic event in 2018. (Photo by Tatan Syuflana/AP Photo)