Despite being made of a seashell mortar, the crumbling remains of this historic Florida mill are still standing.

A hidden beach at the end of a tunnel of mangrove trees.

Stay in a room with a view... of the bottom of the ocean.

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

A mysterious castle built as a monument to lost love.

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

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

The only rotating bar in New Orleans has been slowly spinning since 1949.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

Three hundred years of preserved Spanish colonial history in San Antonio.

A 131-year-old wunderkammer of Texas history.

The summer home of the largest colony of bats in the world.

A 2,500-pound wooden nickel makes this woodworking museum easy to spot from the road.