A hamlet full of permanent Christmas spirit holds one of the earliest theme parks in the United States.

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

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

A priceless collection of the Nation's cryptologic history.

Rediscovered after a century, the father of the American Navy was reinterred in something dredged up from Davy Jones' Locker.

This 16-foot, intricately detailed model of the Gearing-class destroyer has been called the most detailed model ship ever built.

This former asylum for Black Americans is haunted by its history of violence and racism.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

You can climb to the summit of Black Mountain, as long as you sign the waiver.

One street divides a single town that stands in two U.S. states.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

Over 20,000 sets of spice shakers reveal the surprisingly telling history of our most basic spices.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

A bizarre roadside attraction and the first instance of miniature golf in the world.

One of the only Florida forts to remain in the hands of the Union all through the Civil War still stands as a historic stronghold.

A local landmark with generations of spraypainted messages, and more being added each day.

Pensacola's UFO home has withstood many hurricanes—just as the experimental 1960s design intended.

A graveyard of bathyspheres and diving bells paints a weirdly accurate account of ocean exploration's rickety history.