
One of the world’s greatest archaeological mysteries is hidden in the Himalayas. 10,000 man-made caves have been tunneled through the rock from above or dug into the cliffside. Who built these ancient structures and why?
One of the world’s greatest archaeological mysteries is hidden in the Himalayas. 10,000 man-made caves have been tunneled through the rock from above or dug into the cliffside. Who built these ancient structures and why?