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.

These fly sculptures are scattered around the city and represent the patron saint of Girona.

Possibly the oldest church in Barcelona, this basilica has its pagan and Christian mythologies all mixed up.

An early 20th-century bullring converted into a modern shopping center.

This underground church is topped with a 500-foot cross that is seen by many as a beacon of fascist hubris.

Giant topiary dog once played a role in a terrorist bomb plot.

Holy Grotto of Montserrat Monastery holds one of Europe's mysterious black Madonnas.

A temple to modernity, tucked away amid Barcelona's more well known museums.

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

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

Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.

An unusual stroll through gentlemen's erotica demonstrates that pornography is timeless.

Mountain where Jesus was first tempted by the Devil.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Climb to the top of the world's largest seated bronze Buddha.

The once highest point in China blends symbolic design with a kick of adrenaline.

This smaller cousin of the Forbidden City has gone from ancestral sacrifice to tourist's whispers.

The most famous location in China was home to whole dynasties worth of imperial rulers.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.