A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.

Spinning silently in the lobby of an Art Deco masterwork is a massive vintage model of the Earth.

In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

A hyper-luxurious, 12,000- square foot home might be buried beneath Queens, still waiting to protect you from nuclear missiles.

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."

Built as a gift to the hottest tastemaker of the time, these hidden quarters remain an Art Deco showpiece.

The factory for the popular Dumbo location, the Greenpoint shop is a quiet gem.

The crown jewel of the Queens Museum is a nearly 10,000-square-foot architectural model of the city originally built for the 1964 World's Fair.

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.

Prove you deserve to be fed by Kenny Shopsin.

A living archive of urban activism and space reclaimed.

Once America's longest-manned military fort, now an abandoned hulk.

Detailed facade of a brownstone in Boerum Hill.

From scholastic to sepulchral - now under reconstruction.

Slyly buy a shake in the Parker Meridien lobby.

This abandoned subway station can still be seen on regular commuter trips.

A bit of retro transportation flair preserved in the world's largest department store.

This enormous Hindu temple in Queens serves incredible dosas in its basement canteen.

Abandoned power station once home to a squatter community, now being developed into an arts center.

The loneliest island in New York.

Though its celestial ceiling is impressive, the true star is the vast collection of French books.

The beautiful tunnel that ran from the lobby to Penn Station is still hidden underneath 34th Street.

For over 30 years the walls of this Harlem schoolyard have been a gallery of street art by "Kings and better."

A once grand hotel is being retaken by the wilderness it once capitalized on.