A spiritual sanctuary in a natural cave.

One of the largest squares in Europe contains an entire artificial island.

One of the oldest still-working clocks in the world sits on an ancient tower.

After World War II, this former concentration camp in Northern Italy became a refuge for those displaced by the war.

This 2,000-year-old Doric bridge is still open to pedestrian traffic to this day.

This medieval city gate is now a blend of the past and the modern world.

Destroyed numerous times, this centuries-old bridge has always been rebuilt with its original design.

The oldest church in Mantua was buried for centuries under the facades of other structures.

A narrow opening between the mountains of the Amalfi Coast creates a scenic hidden beach.

On the shores of Lake Garda, the ruins of a Roman villa that allegedly belonged to the poet Catullus.

One of the earliest depictions of an Arthurian scene that is shrouded in mystery.

One of Catholicism's four major basilicas has a series of papal portraits that are said to predict the end of the world.

This zoological museum began as the first great curiosity cabinet.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

A small window on Via Piella offers a lovely and rare peek at Bologna's lost canals.

Go inside to really appreciate this 500-year-old technological masterpiece.

The 1,000-year-old abbey is the birthplace of modern musical notation.

All that is left of this medieval castle is two towers, both of which now display a visible tilt.

Time has been frozen at this station since the bombing in 1980—or so it was believed.

A beloved local artist has been honored with this statue of a man emerging from a toilet.

This Renaissance palace features a unique architectural design and is now home to the Ferrara National Art Gallery.

This sword isn't waiting for a king to pull it out. It was placed there by a saint.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.