Elvis's own personal tropical hideaway.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

Look closely and you’ll notice that the color changes a third of the way up the tower.

The most decorated dog of World War I is preserved in the Smithsonian.

Washington's iconic carousel has a nice piece of Civil Rights history.

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

The farm where one of America's greatest leaders was raised is now a well-appointed landmark.

The graveyard holding the remains of George Washington's slaves was forgotten for nearly 200 years.

The real-life site of Ichabod Crane's infamous gourd attack.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

A turn-of-the-century architectural marvel built on healing mineral springs and salt licks.

The empty tomb that houses the memories of Roy Bertelli's revenge.

The original vault that held the president's remains still stands, empty, not far from where he was finally buried.

A six-ton, 12-foot-tall concrete prairie dog is touted as the largest in the world.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

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

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

This modern castle sat empty for decades before a fire inspired its builders to complete its luxury halls.

This huge clock made of flowers and simple machinery was once used a political weapon.

The home used in just a few seconds of film that came to define the setting of a hit sitcom.

You thought Santa Claus didn't exist, but it turns out you were wrong.