The hallucinogenic center of the ancient world.

A bomb shelter and some fireplaces are all that remain of the house Fred Roberts tried so hard to keep standing.

Tubing through a cave lit with glowworms is a magical underground experience.

Once a place of peaceful repose, this sanitarium now faces an uncertain future.

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

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

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

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

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

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

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

Once the world's largest reinforced concrete structure, this abandoned bridge now beckons urban explorers.

A farm in New Jersey grew a most unusual crop for AT&T's testing purposes.

Tucked behind New Jersey's abandoned Gingerbread Castle lie the eerie ruins of a once-flourishing paper mill.

This ominously named New Jersey street seems to be attracting over-the-top legends of its own making.

Once in a state of dilapidation, this candy-inspired fortress is now being revived.

This disastrous New Jersey safari park saw animal attacks, escapes, and disease before being abandoned.

A storefront museum in Asbury Park honoring the Jersey Shore’s deep history of mystery—including the Jersey Devil.

Series of storm drains connected to a dark urban legend.

This historic iron-working village is now a ghost town so immaculate that it looks as though it was recently built.

This abandoned seaside fortress is now simply an imposing ruin being taken back by nature.

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

A tunnel once abandoned now thrives with graffiti art as an off-limits makeshift gallery.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.