Gold Rush-era tombstones line the park's paths.

World War II bunker still standing on the New Jersey beach.

The rusting remains are visible sticking out of the waters of the Delaware Bay.

The greatest real estate coup of all time.

One of the longest water bridges in the world was built over a supposedly haunted swamp in Louisiana.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

New York City's smallest piece of private property.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

The final resting place of New Orleans' most famous voodoo priestess.

A notorious punk house turned co-op.

The most confusing clock in New York.

Red frames showcase remnants of one of New York's original subway stations.

Small monoliths of several varieties of stone sit alongside a wooded path in the Bronx.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

The once abandoned ruins of a Victorian beachside amusement park are now back in working order.

Reclaimed by nature, the ruins of Doodletown, New York are remnants of a town consumed by a state park.

Protecting the future of some of the rarest and most misunderstood mammals of North America.