Abandoned concert venue legendary for its rock counterculture.

A 200-year-old bar with a cheeky name claims to have served Edgar Allan Poe his final drink.

One part local history, 99 parts gruesome haunted house.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

The greatest real estate coup of all time.

A grand New York post office that is home to mailman Santas, scraps of postal history, and a pneumatic mail system.

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

Unrepaired walls from a 1920 anarchist bomb attack.

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Historic Greenpoint theater, turned roller disco, now housing a chain pharmacy store.

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

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

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

Five candy-colored villages on the Italian Riviera.

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

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

The palatial McDonald's that inspired Wesley Willis.

This float factory takes the mask off of Mardi Gras and lets visitors see where the magic happens.

By day this New Orleans square is for pedestrians, but by night it is a kingdom of kittens.