Copenhagen's celebrated theme park and gardens.

During the summer months, giant teddy bears take over Paris near Les Gobelins metro station.

The video game-themed street art first popped up in the French city.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

This bridge was constructed from the rubble of the infamous Bastille.

Buying your medicine at this particular pharmacy is like taking a trip back in time.

Spanish religion mixed with local architecture has yielded a network of churches unlike any other.

This iconic hilltop church doubled as a lighthouse in the 19th century, guiding ships into the port of Valparaíso.

A fantastical and futuristic temple of light built from nine monumental glass veils.

A sculpture of a giant hand reaches for the stars in the middle of the Atacama desert.

This museum covers 10,000 years of Pre-Columbian Latin American history.

How a lunch counter in Chile became a shrine to the 42nd president of the United States

A labyrinthine underworld of tunnels and caverns hides beneath the city.

There's a labyrinth of medieval chambers hidden deep below a 15th-century pub.

Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.

The oldest inn in England served brew to the crusaders.

The fake World Cup prize was secretly created after the first one was stolen in 1966.

Dating back almost 400 years, the oldest public collection library in the United Kingdom was once the study hall of Karl Marx.

A Victorian Gothic masterpiece housing a world-class collection of rare books and manuscripts.

Be on the lookout for the symbolic insect all over the city.

This pedestrian walkway cuts through a cemetery and over several burial vaults.

The painting on an aptly named street honors the 1980s slasher movie.

Recently restored menagerie of Victorian-era beasts.

An impromptu shrine appeared shortly after beloved "Torchwood" character Ianto Jones was killed off the show.