Delicate Wurlitzers, creepy clowns, and The Noid all share space in this insane explosion of kitsch history.

One of the steepest streets in the United States makes an intriguing challenge for cyclists.

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

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

Huge masonic hall in Philadelphia with lavishly themed rooms.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

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

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

Where America's first doomsday cult awaited the end of the world.

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

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

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

A rare view of a preserved Victorian science museum.

Mysterious rocks that ring musically when struck.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

A toxic ghost town sitting atop a massive coal fire.

World's first "penitentiary," meant to be humane, drove men insane.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

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

This demolished goliath of American industry once loomed over the depressed town it once made thrive.

North America's oldest quarantine facility was built in response to Philadelphia's 1793 yellow fever outbreak.

Descendants of this colonial Pennsylvania family still travel from far and wide to visit the 300-year-old home of their Quaker ancestors.

Dozens upon dozens of boulders engraved with scripture tell the story of one man's troubled life.