One of Antoni Gaudí’s earliest buildings, built between 1886 and 1890 for the industrialist Eusebi Güell.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

Occupied for six centuries by Franciscan Order nuns, this monastery is an amazing ode to Catalán Gothic architecture.

This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

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

The final resting place of the great navigator, or maybe his brother.

The only urban monument in the world designed by the great surrealist painter Salvador Dalí.

This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

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

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

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

A public work of art that also provides some relief from the summer heat.

Strange rumors surround the artist who created these solemn metal guard dogs.

A whimsical bridge adorned with decorative dragons.

This one-time health resort was used by aristocrats around the world.

Often mistaken as a medieval Gothic monument, this unique cornerstone only dates back to the 1980s.

A series of bronze circus performers spread throughout a Slovakian shopping center.

According to the local legend, these boys and ducks were turned to stone by an angered water goblin.

A sculpture of the beloved author surrounded by characters from his fairy tales.

Launched by Napoleon's soldiers more than 200 years ago, a cannonball remains embedded in the tower wall.

A once-fairy tale mansion now stands in a state of disrepair.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.