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

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

A take-out restaurant that only serves cuisine from countries with which the United States is in conflict.

An abandoned stretch of highway, deteriorating next to the operational one.

Two nations form a rare four-sided border at the peak of a mountain, philosophical questions result.

An abandoned theme park with a strange and tumultuous past.

One of the few surviving "Wigwam"-themed motels.

Prehistoric animals decorate this popular outdoor park.

The world's longest known cave system.

One of the oldest Catholic churches in the U.S., situated just east of Gettysburg.

Where the oil industry began.

The famous bell was secreted away and hidden in a church in Allentown during the British occupation of Philadelphia.

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

The largest clock face in the United States is twice the size of Big Ben and infinitely more ad-sponsored.

The Pennsylvania landscape depicted by a quarter mile of mosaics made from used road signs.

Collection of trolley cars in the woods represent one man's attempt to preserve transportation history.

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

An Australian lake whose pink hue defies scientific explanation.

A clay house decorated with ceramic chips in Tianjin.

A museum and memorial built amid the rubble of a town obliterated by nature.

The man who is mainly remembered for a chicken dish he had nothing to do with is buried under a large concrete dome.

Eurasia's most difficult place to hang out, and farthest point from sea access.

Beijing's expansive subterranean hiding spot now crumbles away as a tourist destination.

China's mysterious record-setting sleeping Buddha.