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/2HVtDQ6

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/2HVtDQ6 

https://twitter.com/NatGeoTravel/status/1136090421053009921