A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

This demon atop the Notre-Dame de Paris looks utterly bored.

Tucked in the back of a flower shop, its collection details the fascinating history of the Netherlands's iconic symbol.

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

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

Architectureal fantasy quarter of Rome.

When a massive landslide hit one of the world's tallest dams it created a tragic environmental disaster.

A star-shaped fortress town fort built in the geometric model of the Renaissance utopian city.

One part local history, 99 parts gruesome haunted house.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

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

A terrific purveyor of natural history objects and curios.

Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

Baroque celebration of the end of the Great Plague of Vienna.

A steam trawler with a whiskey-soaked history driven ashore in 1960 resides rusty but still standing on the shoreline.

This pub built its reputation pouring post-shift pints for employees of the cemetery with which it shares a wall.

The oldest inn in Kilkenny was established by the first convicted witch in Ireland.

One of Ireland's most infamous prisons for rebels including men, women and children.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

Iconic Los Angeles residence famous for its 19 statues of Michelangelo's David.

This centerpiece of the Hollywood & Highland shopping center is a recreation of a long-lost movie set.

Legendary frontman of the Doors looms in this giant mural by famed Venice muralist, Rip Cronk.