Italian cave with exceptional acoustics and an unsavory history.

This colorful statue welcomes visitors to a Barcelona park.

Catalonia Tradition: Beating the hollow Christmas log until it defecates in your fireplace.

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

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

The oldest giants in Catalonia are now displayed in a 14th-century Gothic church.

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

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

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.

This semi-secret storybook hedge maze is also the oldest garden in the city.

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.

Built to repay the sins of the father, this church is home to one of the most valuable works of Western art.

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

One of the oldest and most significant collections of Ancient Egyptian archeology outside of Egypt.

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

The astonishing collection of an infamous criminologist.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

This centuries-old Italian chapel hangs midway down a sheer cliffside.

In this medieval church, a centuries-old stuffed crocodile hangs from the ceiling.

This artistic temple brings together multiple architecture styles, but is only an example of one.

The home of a neoclassical master is now a shrine to his chosen art style.