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

A discreet little stairway on St. Nicholas Avenue leads to a quaint and unexpected cobblestone street of 19th century wooden rowhouses.

Hordes of precariously balanced stone figures crowd the shores of the Hudson River.

The last slot car racing arcade in Brooklyn is keeping the dream of speedy little autos alive.

The end of the 4 Line is also the end of the line for 300,000 souls in one of NYC's most illustrious cemeteries.

This collection of grinning ephemera has grown from basement to Brooklyn.

Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.

A WWI fighter plane and turn-of-the-century penny candy shop are among the unexpected features of this Financial District building.

Prove you deserve to be fed by Kenny Shopsin.

Nondescript elevator doors open to reveal a stunning, surreal world.

Tucked in a nondescript downtown Brooklyn mall is a bar containing a remarkable turn of the century anatomical wax collection last seen in 1920s Berlin.

A restaurant on Staten Island showcases a different grandmother’s cooking every night.

First a horse rendering plant, then a 19th century landfill, this beach is full of glass from thousands upon thousands of broken bottles.

One of New York's best collections of pinball is hidden in a secret bar in the back of this laundromat.

A celebration of capitalism in Midtown.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

Tucked in the back of this amazing antique store is an important piece of medical history.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

A terrific purveyor of natural history objects and curios.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

One of the most important yet well-hidden museums dedicated to the history of medicine.

Rome's ancient Etruscan rival, now a park full of ruins.

An abandoned Roman salami factory has found new life as an art space home to 200 squatters.