At least seven hues of blue and turquoise make this freshwater lagoon unique.

A rim-made reptile in North Dakota.

Former villa and estate of James Deering developed to preserve native tropical forests.

The eccentric mansion of one of the most popular horror authors of modern times.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

The second-oldest garden cemetery in the U.S. was also a college brainstorm spot of Stephen King.

Dental instruments from the illustrious history of American dentistry.

The only zoo where you can buy animals that won't need feeding.

This lovely burial mound is actually a replica that was installed after archeologists excavated the original.

A charming monument to a very special dog.

The highest point in South Carolina was once owned by an energy company that neglected it but now the state is taking it back.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

The once-abandoned 140-year-old hotel used in the movie "In Dreams."

This ancient octopus-like tree was saved from destruction thanks to shady reporting.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

The final resting place of two (or three) presidents, one vampire, and 18,000 Confederate soldiers.

Heron, whitewater rapids, and urban industrialism all add to the beauty of this concrete nature walk.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

At 207 feet, one of the world's longest continuous escalators.

A former major munitions plant that has been converted into a sprawling art space.

An original apothecary from 1792.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

The site of the climactic scene from the classic horror film is now a historic landmark.

The United States Capitol's former columns still stand.