Not even a series of devastating fires could keep this odd castle in upstate New York from bouncing back.

This outdoor gallery of graffiti-covered walls pays homage to the past, present, and possible future of street art.

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

In its day this historic fort held 100 cannons pointed in almost every direction to protect New York.

An abandoned asylum once on the cutting edge of lobotomies may be reborn as a Christian college.

Home on the Hillside, and home of the first breakfast cereal.

Empty, but not abandoned, this cavernous Brooklyn loading dock was once considered the largest individual building in the world.

For over 80 years, Mayan ruins stood proudly in a most unlikely location.

There’s a secret bunker inside the Brooklyn Bridge, but the city won’t say where.

Check out the underground party scene at the "Burning Man of Brooklyn."

This old cement mine has been used as everything from a mushroom farm to a recording studio.

A collection of fanzines, recordings, and documents detailing the rise and influence of the feminist punk movement.

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

Thriving meadows span a rooftop in one of Brooklyn's most heavily industrialized neighborhoods.

A deteriorating 1990s Girl Scout camp in a beautiful lush park on Lake Ontario.

A former insane asylum despised by Nelly Bly and Charles Dickens is now fashionable apartments.

Hidden in one of New York's oldest subway stations is the final remnant of the site of the bizarre Shakespeare Riots.

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

In the middle of downtown Brooklyn lies a 165 year old secret hidden right below the surface (closed to the public indefinitely).

The library of every book lover's dreams.

This iconic tattoo shop has its own onsite museum with artifacts from the early history of modern body art.

America's greatest forgotten garden and the former stomping grounds of Son of Sam.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

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