These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

This little museum in the town where zombies were born celebrates the living dead.

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.

A beautiful oddities shop crammed with strange and morbid curiosities.

"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

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

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

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

A rare view of a preserved Victorian science museum.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

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.

The "first cat," "first dog," and even a presidential pygmy hippo all get their due in this museum.

Outdoor exhibits explore the contributions of European, African, and indigenous peoples to American frontier culture.

This museum explores the grim reality of life in the earliest British colonies in America.

This war hero's old shop remembers the fine line between medicine and quackery during the Revolutionary War.

An extensive, if one-sided, history of U.S. law enforcement's war on drugs.

A "hospital" where people went to be quarantined, die, and be buried in the yard.

One of the last active volcanoes on the Eastern seaboard.

Take an otherworldly journey in a school dedicated to out-of-body experiences.

America's first public mental health facility.

An original apothecary from 1792.

Paranormal investigators claim this abandoned asylum is the most haunted spot in the eastern U.S.