In downtown Oslo, a menacing and terrifying relief clings to a church wall.

A hidden treasure in London with a rich medieval history, and the resting place of many luminaries.

Beggars were miraculously "cured" of their fake ailments when they returned home to this 17th century Paris slum each night.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

A 16th-century fountain marks the site of a lost medieval cemetery once filled with mass graves.

One of Jeff Koons’s largest sculptures and his first commemorative work.

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the first ‘Harry Potter’ film.

The sculpture of the deceased cockatoo flops atop its personal plinth.

The world's largest collection of ship figureheads includes figures from legends and history alike, from Sir Lancelot to Abraham Lincoln.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

Three connected pink triangles memorialize persecuted gays and lesbians throughout history.

The former headquarters of history's oldest megacorporation.

In the days before house numbers, these colorful signs held clues about various buildings' purposes.

Belgium’s famous peeing statue has worn many hats (and coats, and pants), which are on display at this small museum.

A little sculpture with a large wardrobe.

Drink among marionettes at this pub inside a historic puppet theater.

Brussels' favorite peeing boy has a sister.

A shining memorial to a Belgian hero is said to bring luck to anyone who touches it.

Climb inside an iron crystal magnified 165 billion times its normal size.

The Devil’s own choice when he needs a drink in Brussels.

Where royalty waits in the height of luxury.

Some 80,000 Delft Blue tiles line the inside of this Amsterdam walkway.

On the outskirts of Ipoh, this sprawling temple complex is home to one of the world's tallest pagodas.