A historic 1890s architectural masterpiece with an iconic clock tower that, once open to the public, now faces an uncertain future.

From scholastic to sepulchral - now under reconstruction.

A crumbling hospital from the 1850s on Roosevelt Island.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

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

This little museum is built on a theater that was once a wildly elaborate speakeasy.

A dilapidated dock tells the story of Titanic's missed arrival.

Become a prohibition rebel.

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