This spectacular track has run continuously since 1882.

A hotel with a rich Wild West history of miners and bootleggers.

This 12-foot-tall T-rex is the largest K’Nex skeleton sculpture in the world.

It may look like no more than a full-scale model, but every part of this full Space Shuttle stack had a working role in aviation history.

A propulsion engine testbed that paved the way for the Space Shuttle launch sits without recognition at this rocket center.

Once a bustling cotton factory, this early 20th-century building is now home to a thriving artspace.

The highest point in Alabama was almost completely deforested, but is now home to protected towers and trees.

A natural history museum with an extensive collection of bird dioramas.

What better place to take a seat?

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

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

This replica of the Greek structure is in the heart of Nashville.

The oldest operating Mississippi River–style steamboat still navigates the Ohio River.

This historic train station has been converted to a locomotive themed hotel.

Once decrepit and slated for demolition, now one of the longest pedestrian bridges in the world.

Step back in time on this preserved 1800s farm.

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 person's lost luggage is another person's treasure.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

Once one of the largest producers of pig iron in the world.

A strange history museum, with items accumulated by a pair of globe trotting spies.