With a depth of around 2,199 metres, a cave in Georgia is so deep that nearly seven Eiffel Towers could fit inside.

Among the strangest inhabitants of Veryovkina and nearby deep caves: ・Plutomurus ortobalaganensis – The deepest-known land ...

When Sergio García-Dils de la Vega kissed his girlfriend, Pilar Orche, goodbye at the entrance to Krubera Cave, he promised to return the next day. But after teammate Bernard Tourte bruised his ...

The Burj Khalifa would go 2,722 feet below the surface. The deepest known point in a cave is in Krubera Cave in Georgia. Switzerland's Gotthard Base Tunnel is the deepest railway tunnel.