Iran, home to the oldest civilizations on Earth, is also brimming with remarkable geologic formations and ancient forests that many know little about https://on.natgeo.com/2KBjFWs

Iran, home to the oldest civilizations on Earth, is also brimming with remarkable geologic formations and ancient forests that many know little about https://on.natgeo.com/2KBjFWs 

https://twitter.com/NatGeoTravel/status/1013739109230301184