Most of Jiaohe's buildings and streets were created by digging below the surface of the ground.

Me and David Shallcross, posing in front of some ruins.

More ruins.

Looking down from the Jiaohe plateau onto the river valley below.

Some headless statues of the Buddha remain inside Jiaohe's massive temple.

David snaps a shot of Jiaohe's large Buddhist temple.

Another river valley lies on the other side of Jiaohe.

Me, in front of China's oldest remaining stupa. It's more than 1400 years old.

David Shallcross relaxes on the stupa.

More of Jiaohe's melted remains.

The best preserved house at Jiaohe. It once contained eight rooms surrounded by a large courtyard.