During World War II, this rice mill became a Nazi concentration camp.

High in the clouds of San Marino sits an ancient tower with some curious prisoner graffiti.

In the world's oldest university is a stunning 17th century anatomical theater carved from spruce.

Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

A massive line that stretches across the floor of Bologna’s largest church was created by a 17th-century scientist to measure the movements of the Sun.

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.

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

This beautiful 150-year-old synagogue survived Italy's fascist period and the Second World War.

Once home to one of the oldest banks in the world, this building is also where Marco Polo's famous travelogue was written.

This cathedral hides a sculpted dog that determines your fate and an unexploded shell from World War II.

This former fascist summer camp was abandoned for decades.

A lover's walk between hilltop towns, decorated with graffiti love notes.

Five candy-colored villages on the Italian Riviera.

The bomb-ravaged remains of of a colossal Neptune.

An ancient rogue artist community hidden next to one of the world's most glitzy and glamorous cities.

Buddha and Jesus tower over this French mountainside headquarters of the Aumism religious cult.

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

The home where the famous astrologer wrote some of his most telling prophecies.

This historic stone gate tower is now just a lonely relic in the middle of a swamp.

A coastal French town said to have been visited by Jesus' disciples is a major pilgrimage center for Catholic Romanis.

A castle-like sea fort from the 17th century is now a museum to oyster farming.

Bordered by forest on three sides and the ocean on the other, the Great Dune of Pilat is the highest sand dune in Europe.

Abandoned 18th century weapons factory in the Aezkoa Valley.