A hidden architectural treasure in New York's Brooklyn.

One of the oldest Jewish cemeteries in the city, it is now overgrown with an urban forest.

This Queens hospital has stood abandoned for almost 20 years after its patients were secretly relocated in the dead of night.

This historic building housed the surviving crew members of the Titanic, who were left destitute after the wreck.

The 28-foot granite map plots the locations of 40 theaters in New York City.

A way to take your secrets to someone else's grave.

Captain America, Sub-Mariner, and the Human Torch were all born in this art deco Manhattan masterpiece.

A beautiful collection of architectural ornaments rescued from demolished New York City buildings.

The highest point on the island known for buildings that touch the sky.

This small and serene place for quiet reflection on Staten Island was built in China based on the gardens of the Ming Dynasty.

An arcade packed with a rotating collection of unique independent video games.

This Dutch Colonial home is the oldest remaining farmhouse in Manhattan.

19th century cemetery hidden in Brooklyn's Prospect Park.

Records of the dead describe the myriad odd ways people used to die.

This plot of old-growth forest is the largest surviving remnant of New York City's original woodland.

A little lighthouse in New York City, surrounded by mysterious stories of insanity-driven construction.

Just your average Marie Antoinette–themed speakeasy in an abandoned 19th-century subway tunnel.

A posh members-only club with a literally dramatic history.

The first "Hall of Fame" in America was designed by legendary Gilded Age architect Stanford White for what was then the NYU uptown campus.

The mummified relics of an American missionary.

Where now stands a 42-story condominium tower of marble, glass and steel was once the central market of New York’s slave trade.

Join in a Seance at the Swedenborgian Church.

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

The iconic Manhattan corner that was once the site of the Beastie Boys' fake clothing store.