The abandoned husk of a mental institution that failed to save a Jazz Age icon still sits nearly unchanged.

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

Decades after testing the polio vaccine on unwitting patients, this historic mental hospital sits in ruin.

These World War I shooting range tunnels are now haunted halls of underground graffiti accessed through the roots of a tree.

Also known as the Founding Church of Scientology.

Dozens of feral felines rule a segment of Hollywood's only graveyard.

Last residence of H.P. Lovecraft featured in his story "The Haunter of the Dark."

Final resting place of one of the classic authors of horror literature.

A 19th-century smallpox cemetery is being reclaimed by scrub forest and sand dunes.

A quiet memorial marks the spot where the victims of the Salem Witch Trials were executed.

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

A museum dedicated exclusively to the lore and history of ouija boards.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

This tiny, painted door at the base of a tree stump has been a fixture of the Harvard University campus for decades.

A Manhattan Episcopal church with an eerie underground crypt.

The remains of a 19th century spring, and the site of an infamous unsolved murder.

This derelict building used to house infirm Freemasons, their widows, and orphans.

All that remains of a magnate's dream home is a historic gate and an abandoned public pool.

A long abandoned hospital building on the outskirts of NYC.

Abandoned power station once home to a squatter community, now being developed into an arts center.

Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

Abandoned 19th century homes once occupied by naval officers, soon to be demolished.

From scholastic to sepulchral - now under reconstruction.