Oldest existing wire suspension bridge in the United States.

A massive sea stack famous for its appearance in The Goonies.

10,000 flowered plants bloom in the City of Roses.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Underground tunnels remain beneath this abandoned mental asylum.

This abandoned radar station from the Cold War era now only broadcasts a seriously ominous air of isolation.

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

Naturally formed white marble arch housed in an abandoned marble quarry from the 1800s.

Over 50 whirling pools left behind from the glacial age.

An old trolley bridge was converted into a breathtaking garden bursting with colorful flowers.

The walkable ruins of an 19th century hotel, destroyed in a horse cremation gone wrong.

A careful eye can find hundreds of dinosaur tracks running along the Connecticut River.

A crumbling hospital from the 1850s on Roosevelt Island.

One of only two commuter aerial tramways in the United States.

Mysterious 500-year-old tapestries depict a unicorn hunt.

This hidden oasis features a stunning view of the Hudson River and the Palisades from a castle-like museum.

One of the last Jazz Age "Wonder Theaters" in New York City.

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

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

A mysterious air force base built to resemble a Long Island fishing village.

An unrealized dream to wirelessly electrify the entire Earth.

A former poultry store that looks like a giant duck and is one of the "seven wonders" of Long Island.