A luxuriant botanical garden below sea level.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

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

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.