A tiny, unassuming park in Tampa that belongs to the Republic of Cuba.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

A precariously balanced rock perches on the edge of a cliff created tens of thousands of years ago by glacial erosion.

The first bridge observation tower in the U.S. offers one of the best views of Maine.

This 19th century granite fortification is one of the most well preserved forts in New England.

The highest point in Maine is a grand gift to the state citizens that also happens to be one end of the Appalachian Trail.

A Circus legend leaves an unexpected endowment.

This statue inspired by Renoir's famous painting embodies the jovial spirit of Key West.

A monument celebrating the idea of reaching inaccessible places.

An idyllic swimming pool tells the tale of Hemingway's trouble with women.

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

"We Seceded Where Others Failed."

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

The largest freshwater lake in the Florida Keys.

Island ghost town detailing Flagler's folly in building the Overseas Railroad.

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

The world's largest occupied bat houses hold hundreds of thousands of flying mammals.

This iron and wood Civil War city-ship was the first vessel to be sunk by an electrically detonated torpedo.

In the depths of the Everglades, one man has dedicated his life to studying the elusive Skunk Ape.

The smallest post office in the United States is no bigger than a broom closet.

The maritime museum that boasts the largest nautical library in the western hemisphere.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

Step back in time on this preserved 1800s farm.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.