18th century anatomical amphitheater of the Royal College of Surgery of Barcelona.

The oldest giants in Catalonia are now displayed in a 14th-century Gothic church.

An unusual stroll through gentlemen's erotica demonstrates that pornography is timeless.

Manhattan's deadly West Side railroad, which killed hundreds of New Yorkers, is remembered by this simple plaque.

The artist and New York City icon lived, worked and died in this converted carriage house owned by another iconic artist, Andy Warhol.

Become a prohibition rebel.

A hidden "place of interment for gentlemen."

Make a tough dinner decision: Octopus wasabi roulette or bull penis?

The oldest surviving synagogue in New York City is now a soaring art space.

There are owls with glowing eyes in Herald Square.

This abandoned subway station can still be seen on regular commuter trips.

This little museum is built on a theater that was once a wildly elaborate speakeasy.

A notorious punk house turned co-op.

Holding the most bodies of any cemetery in the United States.

This hidden library of physiological ephemera contains centuries worth of knowledge on the vim and viscera of the human body.

A crumbling staircase in upper Manhattan is all that remains of one of the most important sites in sports history.

The highest point on the island known for buildings that touch the sky.

Home to the infamous "Typhoid Mary" and the worst loss of life in New York's history prior to September 11, 2001.