An abandoned Gold Coast-era mansion once intended for the exiled ruler of Albania, who never arrived.

Whale bones, scrimshaw, and sperm oil make up just a part of this comprehensive collection of whaling history.

A millionaire's abandoned swimming pool from the gilded age of one of America's most distinguished families.

An eccentric playboy's astounding natural history collection.

A formerly abandoned mental institute, now back in business.

This forgotten graveyard in rural New York State once served a pioneering hospital.

Beneath the mossy overgrowth covering this once-sprawling campus lies decades of history and the secrets that come with it.