Here you will find everything from medieval fortresses and Soviet monoliths to glass skyscrapers and alpine lakes https://on.natgeo.com/2XSknGo

Here you will find everything from medieval fortresses and Soviet monoliths to glass skyscrapers and alpine lakes https://on.natgeo.com/2XSknGo 

https://twitter.com/NatGeoTravel/status/1151537262439620617