A B.Y.O.B. Mexican cantina lives inside one of the last tortilla factories in Brooklyn.

New York's southernmost subway station is whimsically wavy.

This neighborhood grocery houses a treasure trove of Eastern European delights.

In the middle of suburban Staten Island, a nearly 150-year-old bakery is preserving the art of a disappearing New York treat.

A Jewish deli run by Yemeni Muslims in an Afro-Caribbean neighborhood is quintessential Brooklyn.

A way to take your secrets to someone else's grave.

A hidden architectural treasure in New York's Brooklyn.

The first "Hall of Fame" in America was designed by legendary Gilded Age architect Stanford White for what was then the NYU uptown campus.

A sculptural commentary on capitalism pokes up from the East River.

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

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

An oasis of calm amid the chaos of the boardwalk, the museum traces the heritage of this beloved beachside amusement park.

A Victorian cemetery in the heart of Brooklyn remains a popular mecca of morbid curiosity.

A hidden "place of interment for gentlemen."

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

Nikola Tesla's former home contains an homage hidden from plain sight.

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

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

One of the last Jazz Age "Wonder Theaters" in New York City.

The subterranean "lake" below the Paris opera house inspired the Phantom of the Opera's lair.

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

What looks like a normal building is really a hollow facade hiding a subway vent.

The video game-themed street art first popped up in the French city.

The narrowest street in Paris.