Mariners once used this prehistoric landfill as a navigational landmark.

The famous boat that once ferried Bogart and Hepburn still floats in Key Largo after being abandoned for years.

This spiny beast guards an artist's village while vying for the title of largest lobster in the world.

A 200-year-old bar is all that remains of one Mississippi River town's rough-and-tumble past.

The second-largest ceremonial mound in the United States is an artificial hill that is loosely shaped like a pentagon.