Inside the cave dwellings, large families lived alongside their livestock until as late as the 1950s, without electricity, running water or sewage.

BBC: Italy's secret caves

Inside the cave, two torches illuminated a golden oval of a room.

NEWYORKER: Max at Sea

Professor Ron Clarke of Wits University in South Africa recently took CNN deep inside the Sterkfontein Cave at the Cradle of Humankind World Heritage Site to expose one more example.

CNN: African roots of the human family tree

One display shows a video reconstruction of the sculptures in their original cave settings, which, like the digital Dunhuang cave, gives visitors the illusion of being inside the environment.

BBC: Digital Chinese caves preserve history

In the winter, when the sun is in the south, it shines on the entrance and heats things up in the summer, the sun moves to the north and the cave entrance is in the shade, keeping things inside cool.

FORBES: China Braces for Escalating Power Shortages

When he finds it, he dives in and revels in it, at one point nearly suffering hypothermia after crawling inside a Grand Canyon cave that is the origin of a freshwater spring.

FORBES: The Story Of Eau

It was like a bat-cave inside, and was located in the Pearl Continental hotel.

BBC: Welcome to Abbottabad

Visitors today can pray inside a small cave chapel once used by shepherds, located about 100m past the entrance gate.

BBC: A Biblical guide to the West Bank

Inside, you will find monkeys scampering and bounding up the 272 steps into Temple Cave, the vast main cavern that houses a golden statue of Muruga.

BBC: Malaysia's Thaipusam festival

They don't just hang works in her gallery, but turn it inside out whether it's Thomas Hirschhorn transforming the space into a cardboard cave or Matthew Barney climbing the gallery walls naked for his first piece back in 1991.

WSJ: Barbara Gladstone