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

This home is decked out like a psychedelic explosion of colors and bowling balls.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

The scuba diving training facility was named for the steam that rises from the cave's chimney.

An underwater city for the dead.

Where manatees are the snowbird vacationers in these balmy Florida springs.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

A castle-inspired apartment building that has stood in Birmingham since 1927.

Large rocks have been painted to whimsically resemble wild and farm animals.

Founded by a man who called himself the greatest hunter alive.

This little-known memorial honors those who have donated their bodies to medical training.

In Rickwood Caverns, visitors can travel hundreds of feet underground and see beautiful formations unique to the region.

Since it formed millions of years ago, this cave system has been a sacred burial ground, a Prohibition-era speakeasy, and the center of an amusement park.

Medical museum featuring a number of excellent medical models.

Booker T. Washington's home at the Tuskegee Institute was a gem of splendor.

A strange history museum, with items accumulated by a pair of globe trotting spies.

This 1,500-acre development hopes to be the Central Park of the South.

Inside this small brick bungalow is a collection of toys intended for the afterlife.

These ruins are all that's left of the former Alabama State Capitol.

Tucked away atop a quaint Alabama pharmacy is this tiny display of antique medical tools.

A collection of huge Pre-Colombian structures in Alabama.

Cadillac where country's first big star was found dead.

This small hut in the middle of a parking lot was once the wooded sanctuary of the 'Hermit of Montrose.'

A miniature city built by a single hunchbacked monk.