The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

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.

These secluded and abandoned anti-aircraft defenses have become one the most scenic viewpoints in Barcelona.

This cemetery features modernist statues as strange as its name.

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.

A modest museum in the final home of Italian poet and father of modern Italian, Francesco Petrarca.

Massive galleon from a box-office bomb docked in Genoa.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

When a massive landslide hit one of the world's tallest dams it created a tragic environmental disaster.

A mysterious stele of unknown origin sits on the peak of this curious mountain.

This bustling Italian plaza is built on the ruins of an ancient Roman amphitheater.

Two stone columns flank the grand Venice square, but there were supposed to be three.

The mountaintop inspiration for Umberto Eco's "The Name of the Rose."

A fairytale island floats in the middle of Italy's little-known Lake Orta.

Ancient snack bar of the Roman Empire re-opened.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

The location of the last witch trials of Italy, known as "The Salem of Europe."

David Sedaris called it "The greatest shop in the world."

Pilgrimage site for star-crossed lovers.

Five candy-colored villages on the Italian Riviera.

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

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