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

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

Try not to get slimed in Tribeca.

Elevated freight railway turned wildly successful urban park.

A crumbling hospital from the 1850s on Roosevelt Island.

The very first subway station in New York City is beautiful, decked out in chandeliers, and ... abandoned?

A prison-like structure guards the remains of a notorious Old West outlaw.

An all-American grocery store in Paris sells U.S. "cuisine" like Pop-Tarts and Heinz ketchup to homesick ex-pats.

The celebrated eyesore created by starry-eyed sweethearts.

The final resting place of the "father of special effects."

The tomb of history's greatest potato promoter is surrounded by tubers.

Walk through spectacular aisles of hanging meat and wagon wheel–sized cheese at the world's largest wholesale food market.

A simple plaque on the facade is the only reminder that the treaty ending the American Revolution was signed inside.

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

Stripes of human ashes cover a back lawn in the most sought-after burial grounds in Paris.

Dedicated to the history and culture of smoking, this small museum now includes a vape lounge.

Collection of antique taxidermy and natural specimens, near one of Paris's oldest flea markets.

Ordinary art transforms to extraordinary thanks to locals' quirky sense of humor.

A 400-year-old church covered floor to ceiling in ex-voto offerings from the faithful.

Former hunting lodge of a duke who was an avid collector of impressionist works.

An iconic and eccentric bar for "Manouche" Jazz music keeps expanding its space—and its influence.

The Argonaute submarine was the French navy's pride and joy in the 1950's.

This bridge was constructed from the rubble of the infamous Bastille.

An unusual number plate signifies the building's saucy past.