Welcome to the The Krubera Cave…
At a depth of 2,191 metres (7,188ft) this is the deepest known cave on Earth!
It’s located in the Arabika Massif of the Gagrinsky Range of the Western Caucasus, in Abkhazia, and is also known locally as “Voronya Cave” which translates as “Crow’s Cave”.
Just to put things in perspective this is 22x the height of Big Ben…
(Image: Stephen Alvarez/National Geographic Stock/Caters News)