Most Florida mansions at the time were built back from the sea on a low limestone ridge that ran slightly inland from the shore along the coast south of downtown Miami.

WSJ: An American Renaissance Gem

The surface of the inland waterway sits at the lowest land point on the planet, more than 400m below sea level.

BBC: Cores reveal when Dead Sea 'died'

Sitting on the border between two former Soviet states, Kazakhstan and Uzbekistan, the Aral Sea was once the fourth-largest inland sea in the world.

NPR: Book Takes Wide-Angle View of a Changing Planet