This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

A legendary speakeasy bookstore returns from the brink.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

New York City's smallest piece of private property.

A hip bar decorated with walls of golden skulls.

New York's oldest magic store.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

Elevated freight railway turned wildly successful urban park.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

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

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

The personal library of the founder of modern neurology is open to visitors.

A majestic lion statue guards this Parisian botanical garden, and feeds on an unsettling item.

A counter-culture bookstore like no other hides in plain sight in the streets of Paris.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

A fake medieval village in the middle of Turin.

The astonishing collection of an infamous criminologist.

For hundreds of years, automatons moving to metallic music have been marking the passage of time.

The oldest stone house in Paris was built by its most famous alchemist.

Abandoned railway line circling the city of Paris.

Notorious artist squat renovated into legal studios.

The small peaceful island off the Venice tourist circuit is where the city began more than 1,500 years ago.

100 year tradition of fist fights, marked by marble footsteps.

This community on a small Venetian island has taken to painting their houses in bright neon hues.