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.

Famous for its bio-luminescent inhabitants, known as "Dismalites" .

A miniature city built by a single hunchbacked monk.

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

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

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.

Bananas are often left for the first monkey America ever recovered alive after being launched into space.

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