This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

A submerged archeological park still holds the wonders of a Roman Sodom.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

The middle finger of modernity.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Architectureal fantasy quarter of Rome.

One of the last full-orchestra recording studios in New York City and an acoustical marvel.

A Manhattan office building is home to the world's largest chess board.

Rummage through this sunken ship, but leave your scuba gear at home.

There’s a secret bunker inside the Brooklyn Bridge, but the city won’t say where.

The name of this tiny pocket park tucked between two buildings on Manhattan's Upper West Side is Latin for its location: "seventy-one."

A whimsical, but often overlooked clock in Park Avenue.

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

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."

A WWI fighter plane and turn-of-the-century penny candy shop are among the unexpected features of this Financial District building.

Lie in a hammock where George Washington stood.

A dark, dank room in subterranean Manhattan was the site of a ghastly murder.

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

Love, knishes, and best wishes from this legendary Lower East Side bakery.

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