This underground oasis is one of North America’s most fascinating prehistoric places—and you can scuba dive in it.

A much more welcome kind of snowbird vacationer, manatees camp out in these springs every winter.

Florida's first suspension bridge.

This Florida sinkhole hides a rainforest-like micro-environment in its depths.

Over 12,500 words are scrawled across each room of this historic plantation house and no one knows why.