Try not to get slimed in Tribeca.

A wild west scene starring life-sized wooden statues hides in the trees behind Pierce College.

A marine aquarium with an astounding variety of fish hides in the basement beneath the famous Palm House.

This underpass became an unlikely piece of cinematic history after its appearance in 'A Clockwork Orange.'

This 19th-century pub features stained-glass windows celebrating Victorian-era "champions."

Taxidermied animals galore, by appointment only.

The remains of the great moral philosopher reside in a university in London.

William Blake claimed to have painted this gothic masterpiece after encountering this nightmarish being in a vision.

This coffee shop lies hidden beneath a historic church.

A toy store with a century-long history preserves the craftsmanship of playthings of the past.

A collection of comics, graphic novels, animation and caricatures devoted to exploring this often overlooked art form.

The final resting place to 300 Victorian-era pets hides inside the city park.

A historic house left in "dramatic still life."

The only university zoological museum in London houses extinct animals, bizarre natural history specimens, and a Micrarium of microscopic creatures.

Eighty million natural history specimens call this gargantuan museum home.

A tongue-in-cheek arcade where the games are based on everyday life.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

A kaleidoscopic warehouse-maze of handmade neon signs.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

This bar and museum are devoted to the controversial comic book work of Kája Saudek.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.