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

Reclaimed by nature, the ruins of Doodletown, New York are remnants of a town consumed by a state park.

You can still ride this 100-year-old work of art in Brooklyn's largest public park.

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

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

This wall on a street corner in Lower Manhattan has been a blank canvas for a rotation of renowned artists since the 1980s.

One man's swirling six-acre monument of stone.

This hidden library of physiological ephemera contains centuries worth of knowledge on the vim and viscera of the human body.

Volunteer-run library dedicated to exploring five decades of activism history.

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

The first and only carousel with a lineup entirely of insects.

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."

The end of the 4 Line is also the end of the line for 300,000 souls in one of NYC's most illustrious cemeteries.

Hordes of precariously balanced stone figures crowd the shores of the Hudson River.

The last slot car racing arcade in Brooklyn is keeping the dream of speedy little autos alive.

A living archive of urban activism and space reclaimed.

The fanciest public restroom in New York City boasts fresh flowers, art, and a classical music soundtrack.

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

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

Detailed facade of a brownstone in Boerum Hill.

An abandoned asylum where patients have been forgotten but their possessions remain.

Neon signs that grace the windows of Bergdorf Goodman's and Tiffany & Co. come from this studio in Brooklyn.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

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