The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

Decommissioned NYC subway cars are dumped into the ocean to create this underwater wildlife habitat.

World War II-era bunkers are hidden under the beaches of this picturesque park, which is still scattered with wartime watchtowers.

A wrecked ship dating back to the American Revolution was only recently discovered off the Delaware coast.

Enchanting gardens surround a derelict mansion, all hidden in plain sight behind a stone wall.

A castle-inspired apartment building that has stood in Birmingham since 1927.

The metal spire on the roof of this tower was intended as an airship docking station, but it was never actually used.

The remains of a foundry and old blast furnaces destroyed during the Civil War are preserved in this central Alabama park.

This 880-acre facility is home to a massive collection of vintage motorcycles and cars, as well as a 2.38-mile race course.

In Rickwood Caverns, visitors can travel hundreds of feet underground and see beautiful formations unique to the region.

Since it formed millions of years ago, this cave system has been a sacred burial ground, a Prohibition-era speakeasy, and the center of an amusement park.

One of almost 200 confirmed impact craters in the entire world, untouched for tens of millions of years.

Medical museum featuring a number of excellent medical models.

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.

This ghost town houses the remains of Alabama's old state capital.

These ruins are all that's left of the former Alabama State Capitol.

This small hut in the middle of a parking lot was once the wooded sanctuary of the 'Hermit of Montrose.'

Come for the boats, stay to explore the intriguing assortment of art.

A wealth of local folk art, antiques, and curios, without ever leaving your car.

You'll need cowboy boots to trek to this old-fashioned saloon nestled in a giant natural cave.

148 feet long and in the middle of a verdant forest.

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.