The highest tides in the world come in and out here twice a day, allowing you to essentially walk along the ocean floor.

A rock maze opens up to a panoramic viewpoint at an abandoned mine full of ghost stories.

Mutant vegetables, transgenic mosquitos, and atomic rodents span the walls of this one-of-a-kind museum.

This titanic java kettle is one of the many kitschy landmarks located along America's OTHER famous highway.

A modern ghost town whose inhabitants were driven away by the growth of nuclear power.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

This Pennsylvania cave holds evidence of the oldest known inhabitants of North America.

This restaurant offers a side of antiques, curios, and a bathroom chock full of owls.

A failed piece of Orientalism has become the proud symbol of a community.

Maine's oldest diner also happens to win acclaim for its elevated comfort food.

Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

One of the most unusual geological features, recognizable from a dozen hit movies.

The longest continuous lava tube in Oregon.

The famed architect designed this Minnesota gas station of the future with a lookout tower.

This "zoo" is a cross between a junkyard and a sculpture garden, featuring animals you won't see anywhere else.

Sandstone rock formations that look like they belong on the cover of a progressive rock album.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

A popular swimming hole that hides one of America's most deadly diving spots.

Eons ago, a rushing lava river formed this pristine passage through solid rock.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

Less a museum than a bizarre fantasy world created by artists and engineers.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.