From the canals of Italy to the marble caves of Chile, behold the wonder of our water-covered planet http://on.natgeo.com/2yh6Reh

From the canals of Italy to the marble caves of Chile, behold the wonder of our water-covered planet http://on.natgeo.com/2yh6Reh 

https://twitter.com/NatGeoTravel/status/928396775874093057