A whimsical bridge adorned with decorative dragons.

Medieval irrigation channels built into the sides of mountains provided Valais with water for hundreds of years.

Traversing steep Alpine slopes, this engineering marvel is one of the longest and highest funiculars in the world.

The bears of Bern have been a city highlight for over 500 years.

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

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

The highest cold-water geyser in the world.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

The Renaissance-era courthouse is a relic from the fortified town's centuries of Venetian rule.

This narrow fjord-like bay is the largest ria in the Mediterranean Sea.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

A statue of a boy looks up at where the famous rival to the Leaning Tower of Pisa once stood.

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

Barcelona's only remaining tram system takes riders to the Tibidabo funicular.

Mountain where Jesus was first tempted by the Devil.

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.

On the wall of this medieval square, a symbol of the Spanish Inquisition.

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

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

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

One of the most photographed buildings in a city known for its Modernista architecture is an abandoned squat.

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

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

Walk into an underground archeological dig, the site of the Roman Forum that was once the center of Valencia.