The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

A fearsome dragon clings to a corner of Munich's city hall.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

Go surfing on this urban wave, "hacked" by local surfers.

The first museum in the world devoted to sexual gadgetry.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

This memorial plaque remembers a strangely shallow maritime disaster known as "Chicago's Titanic."

The iconic Chicago sculpture hides a beautiful and easily overlooked plaque on the backside.

This historic electric train has operated with regularity since the early 1900s.

A memorial to honor those who were killed in a Bastille Day terror attack in Nice.

An Orthodox church built by the Royal Family for the Russian community exiled to the French Riviera.

When this funny little building went up in the 19th century, most people thought it would simply fall over.

The intricate geometry inside this Baroque-style dome was designed to create "terror of the human soul."

This building has a giant piercing through one of its corners.

A landmark in the history of technology and computing is hidden in a tiny Baroque chapel.

This fountain is dedicated to the workers who perished constructing the Fréjus Rail Tunnel.

Ernest Hemingway was the first to sign this colorful wall covered in thousands of celebrity signatures.

This sinister Baroque entryway could lead you to a terrible fate.

The mysterious “eyes of the Devil” dot a street in the occult center of Italy.

The Swiss artist's bulbous and overgrown shape-shifting sculpture controversially graces the center of Bern.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.