The haunting, dilapidated remains of a former poorhouse on Staten Island's Greenbelt.

From scholastic to sepulchral - now under reconstruction.

The most unloved grain elevator in Brooklyn was a “Magnificent Mistake.”

The ghost town that ended up on Ebay.

Grand architectural relics gain a new life in this Pennsylvania warehouse.

Whimsical artist house in the New Jersey woods.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

This last stalwart of the now-forgotten feminist restaurant movement has been serving food in an activist atmosphere since 1977.

A former copper mine which became a truly unsuccessful prison.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.

Ruins of a historic medical facility sits eerily by the water.

While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.

The intriguing personal collection of a professional demon-chaser.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

An abandoned village that doubled as "The Hunger Games"' post-apocalyptic wasteland is up for grabs.

A sculptor's dream castle turned fantastical ruin.

Bigfoot prints, Feejee mermaids, and haunted dolls on display in a tiny North Carolina town.

Abandoned former poorhouse, bible college, and haunted house in an Ohio hamlet.

This steamer is known as "The ship that built Cleveland."

This pair of eccentric Ohio castles were built by a pair of brothers who wanted to bring a bit of class to the Ohio wilderness.

Ghost stories surrounded this “castle,” the only structure from a huge mansion that was never built.

An abandoned asylum incorporated into a college campus.

This lovely university observatory continues to sit abandoned since its potential savior was sent to jail for fraud.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.