The only surviving sidewalk clock in Brooklyn.

Historic Greenpoint theater, turned roller disco, now housing a chain pharmacy store.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

In the middle of downtown Brooklyn lies a 165 year old secret hidden right below the surface (closed to the public indefinitely).

A living archive of urban activism and space reclaimed.

Walk into the 19th century without leaving Brooklyn.

Deep under Manhattan is the largest construction project in city history. So far, the project has taken the lives of 23 workers, or "a man a mile."

Come for the pastrami, stay for the million-dollar art.

Leaf through over 30,000 artists' sketchbooks in what may be the world's largest collection of doodles

Detailed facade of a brownstone in Boerum Hill.

A Pythagorean funhouse that tries, successfully, to prove that math is the coolest thing ever.

A good place to research the Freemasons, esoterica, occultism, and hermeticism.

Ride the subways of yesteryear.

Elevated freight railway turned wildly successful urban park.

A hidden "place of interment for gentlemen."

Reverend Jen's unique museum/living room showcases her troll collection.

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

A terrific purveyor of natural history objects and curios.

Set sail on a small scale.

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

Order scoops of pandan, lychee, and black sesame at this family-run institution.

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

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

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