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

Elevated freight railway turned wildly successful urban park.

Three-story slide through the New Museum.

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

One kilometer of thick brass rod laid out before your eyes.

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

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

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

Abandoned 19th century homes once occupied by naval officers, soon to be demolished.

A massive forgotten storehouse from 1913 on the Brooklyn Waterfront has a spectacular view of Brooklyn.

Detailed facade of a brownstone in Boerum Hill.

An illegally built ramshackle mansion tucked in the middle of Brooklyn is now being turned into condominiums.