Iran, home to Earth's oldest civilizations, is also brimming with remarkable geologic formations and ancient forests http://on.natgeo.com/2upAGIe

Iran, home to Earth's oldest civilizations, is also brimming with remarkable geologic formations and ancient forests http://on.natgeo.com/2upAGIe 

https://twitter.com/NatGeoTravel/status/882599988420857856