This massive hand-carved metropolis reveals elaborate artwork and a window into the ancient Nabatean civilization. http://on.natgeo.com/2tBMZEq

This massive hand-carved metropolis reveals elaborate artwork and a window into the ancient Nabatean civilization. http://on.natgeo.com/2tBMZEq 

https://twitter.com/NatGeoTravel/status/889198509467029505