The earliest known map to show America, discovered by accident at a Paris bookshop.

Commonly acknowledged as the only public monument to the Devil himself.

An FDR-era tuberculosis sanatorium has stood abandoned in the suburbs of the U.S. capital for over 30 years.

This labyrinthine resting place of Black American leaders has been reclaimed by nature.

An original apothecary from 1792.

The highest point in Virginia can only be reached by passing through ponies and flowers.

This once-palatial plantation may have been the site where a draft of the Declaration of Independence was written.

Burke’s oldest cemetery also houses the victim of the county's grisliest murder.

An eerie, decaying ghost town destined to fade into the forest.

This abandoned Victorian-style house was built in 1884.

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

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

A former mental hospital founded in the 1930s by a eugenicist who advocated for the forced sterilization of patients.

This stately mansion, built in 1787 by America's first Secretary of the Navy, is rumored to be one of the most haunted buildings in Washington, DC.

The ruins of this long-abandoned unsuccessful gold mine can still be found.

The remains of a historic plantation nestled in between a parking lot and the rental car return at Reagan National Airport.

A decaying garage hidden amid the dense forest is all that remains of a once-prosperous dairy farm.

Standing for over 200 years, the abandoned home of a Revolutionary War hero and later a succession of prison superintendents.

One of the last active volcanoes on the Eastern seaboard.

The flower-shaped temple in Virginia aims to transcend the boundaries of the world’s religions.

Outsider art meets paleontology at this roadside reptile repository.

This abandoned radar station from the Cold War era now only broadcasts a seriously ominous air of isolation.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

The ruins of a Massachusetts prison farm can still be found crumbling the woods of a state park.