During the holidays, a vintage subway train whisks New Yorkers back in time.

A natural gas leak provides a flickering flame beneath a waterfall.

This ruined fort hidden at the top of Central Park can't seem to keep from losing its historical plaques.

This empty Victorian manse on Staten Island is said to be haunted but is actually a real life crime scene.

The walls are decorated with whimsical murals painted by the creator of the Madeline franchise.

Unique antiquarian shop specializing in globes, maps, and prints.

The abandoned husk of a mental institution that failed to save a Jazz Age icon still sits nearly unchanged.

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

Read between the lines of the subway map to find the hidden abandoned Civil War fort.

The oldest surviving synagogue in New York City is now a soaring art space.

This former Norwegian sailor's church is slowly being taken over by ramshackle robot musicians.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

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

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

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

Collapsing castle on the Hudson river was once the storage site of military surplus business.

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

More gold than anywhere else, ever.

A very classy 1920s-era bar right in Grand Central Station.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

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

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

Ride the subways of yesteryear.