Medical and zoological curiosities for sale.

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

The legendary building that needed ghostly approval before being built.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

Tucked in the back of this amazing antique store is an important piece of medical history.

A crumbling hospital from the 1850s on Roosevelt Island.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

A psychedelic labyrinth on the San Francisco bay.

World's largest collection of serial killer artwork and other macabre exhibits.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

The creek where a shark wreaked terror upon New Jersey, and served as the inspiration for "Jaws."

This small and serene place for quiet reflection on Staten Island was built in China based on the gardens of the Ming Dynasty.

This meticulously extracted nervous system allegedly came from a 19th-century custodian who donated her body to science.

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

The residents of this ominous-sounding street in Pennsylvania liked its name so much they fought to keep it.

Seven golden statues rise into the sky from sculptor Victor Victori's New Jersey front lawn.

Series of storm drains connected to a dark urban legend.

This tiny structure was built by the creator of the Brooklyn Bridge.

An enormous overgrown greenhouse teeming with graffiti and wildlife.

This disastrous New Jersey safari park saw animal attacks, escapes, and disease before being abandoned.