One of the world’s greatest archeological mysteries has been discovered deep within the Himalayas in Nepal.

Nepal.The ancient kingdom of Mustang (Northern Nepal) is home to some of the rarest culture, traditions and artifacts in the whole of South Asia.One of the world’s greatest archeological mysteries has been discovered deep within the Himalayas in Nepal. Thousands of man-made caves have been found dug into a cliff so large that it dwarfs the Grand Canyon. The caves were either dug directly into the hillside or tunneled from above and who made them and why remains a mystery. 10,000 of these caves have been discovered which makes the cliff resemble a giant “sand castle”.