The blood-soaked ruins of the castle where the murderous Blood Countess was walled in alive.

Edison's cast-in-place concrete houses were a failure, but way ahead of their time.

This historic Canadian jail was once the longest operating prison in the country and is now open for people to incarcerate themselves.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

The remains of the worst military aviation accident in Canada's history.

This feline raises a friendly paw at drivers barreling toward the freeway.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

This Maine bridge may be the last wire-supported bridge of its type in the world.

A famous alternative culture epicenter and where Joplin serenaded young hippies.

An old abandoned mining town in The Adirondacks where Theodore Roosevelt first learned of the shooting of President William McKinley.

This former theme park in New York's Adirondack Mountains fell into ruin before being resurrected as a state-run campground

The original Uncle Sam was actually a New York meatpacker who is buried under this historic grave.

This abandoned cemetery is crumbling into ruin, exposing the artifacts and bodies buried there.

What was once a trend-setting, phrase-coining icon of architectural splendor is now a rotting, forgotten hulk.

This mouldering abandoned mental hospital was once a center for progressive healing.

The randomness of this wall of lava lamps helps encrypt up to 10 percent of the internet.

The lost town of Neversink, sunk by New York City.

This once luxurious Catskills resort is now a haunting ruin.

These mouldering mansion ruins remember a time when the Catskills were nothing but luxury.

An abandoned castle owned and ignored by Masons carries a cursed history.

A fictional town that was briefly brought to life before fading once again out of existence.

Buildings that dynamite couldn't bring down were abandoned because of bathroom issues.

The last of Philadelphia's wood-paved streets is now a landmark of terrible engineering.