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

A bridge to rival those in nearby Venice but without the crowds.

This uniquely designed bridge served as the city gate for Comacchio.

The chimney of a shuttered power station in the Po Delta is the second-tallest structure in Italy.

Filled with goldfish swimming in a shallow pool of sea water, this ancient crypt is more wishing well than burial site.

A medieval, mosaic-lined baptistry built by a heretical Christian sect.

The roof of this ancient mausoleum is made from a single Istrian stone weighing a massive 230 tons.

Italian poet Dante Alighieri is entombed in this small mausoleum in Ravenna, and his hometown of Florence has never been too happy about it.

Psychoanalyst Carl Jung reported a paranormal experience after visiting this mosaic-lined Roman baptistry.

An incredible mosaic-lined monument said to have held the remains of an ancient Roman empress.

This 6th-century church has the largest and best-preserved collection of Byzantine mosaics outside Constantinople.

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

One Italian taxi driver covered his entire house in small seashells creating a weird bit of architecture that is preserved to this day.

For many years, the river that Julius Caesar led his army across into Italy was lost until re-identified.

These structures hanging over the water's surface are traditional fishing machines.

Numerous stone coffins from different centuries, lined up in a sixth century basilica.

Where members of the Crossbow Corps of San Marino demonstrate their skills.

The San Marino-Rimini railroad was short-lived but this tunnel once provided shelter for hundreds of refugees during World War II.

The smaller of the three towers of San Marino is a former prison inaccessible from the ground level.

A galley-shaped memorial to the prisoners of an infamous fortress.

Remains of a cargo ship that wrecked in 1988.

Three underground crypts and a pointed arch under the bell tower make this cathedral unique among Romanesque churches.

A dead saint, a deadly poison, and a mysterious holy ooze.

This abandoned Slovenian military barracks has become a punky-political art squat.