One of the only Florida forts to remain in the hands of the Union all through the Civil War still stands as a historic stronghold.

A humid oasis combines recreation with exploration in a unique underwater cavern.

This historical air terminal in Houston is slowly becoming an aviation museum dedicated to the city's aeronautical history.

A little bit Wonkatania, a little bit pink elephant.

A park filled with vibrant mosaics created by more than 300 folk artists.

Beer lover's can-covered house.

There is an unmarked red button hidden over Houston's Buffalo Bayou that is just begging to pushed...

A private collection of massive steel monsters guarding a Texas pipe works.

A taste of Middle Earth, in the middle of the Bayou City.

An octet of classic chrome trailers speared into the ground act as a tribute to the silver bullets of the open road.

This mass grave for victims of a massive hurricane remained hidden until 1991.

History is hiding at the Morean Center for Clay.

Remarkably realistic Florida shoal bass "swim" inside this large globoid sculpture.

A local landmark with generations of spraypainted messages, and more being added each day.

A self-explanatory attraction allows fans to respectfully remember and honor a comedy legend.

These former theme park figures have a new lease on life outside a water plant-turned-restaurant.

The humble home where the famous beat author lived briefly and wrote one of his most famous works.

Given just one more year to live, Conrad Schuck built his dream house in Bartow, Florida.

Florida castle built with aluminum printing plates.

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

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

It may take some time to locate, but it's sure to warm even a heart of stone.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

Wild lights and sound effects turn a walk through some caves into an eye-popping 1960s tourist attraction.