A hyper-luxurious, 12,000- square foot home might be buried beneath Queens, still waiting to protect you from nuclear missiles.

A remnant from the golden age of aviation still in use today, Pan Am's Clipper service took off from this Art Deco gem.

A basement pool hall is the front for some of the best Dominican food in New York City.

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

Surrounded by low rise buildings and partially converted into an auto body shop, this marble archway is the only vestige of a forgotten Manhattan estate.

The famous author's cottage hideaway.

This enormous Hindu temple in Queens serves incredible dosas in its basement canteen.

A collection of haunted artifacts chronicles the career of the world's most famous paranormal investigators.

A former connection to City Island, it has been abandoned since the 1930s.

This old estate is a remnant of when the Bronx was a popular summer destination for wealthy New Yorkers.

The oldest continuously operating farm in New York State.

An Escher-inspired library dedicated to the wonders of the human mind, yet closed to the public.

This forgotten graveyard in rural New York State once served a pioneering hospital.

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

An abandoned horticulture institute gloomily presides over rows of derelict and vine-wrought greenhouses.

Connecticut grave of the woman responsible for the Winchester Mystery House in California.

Glacial erratic or man-made dolmen? It probably wasn't druids.

All that remains of a magnate's dream home is a historic gate and an abandoned public pool.

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

A formerly abandoned mental institute, now back in business.