@Belilav 26 April 2021 more from that month

Heavenly caves. The Mustang, a former kingdom in north-central Nepal, hides one of the greatest archaeological mysteries in the world. In this dusty, windswept area hidden in the Himalayas, where the deep canyon of the Kali Gandaki River in some places surpasses the Grand Canyon in Arizona, there are an incredible number of caves dug by people.