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

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

A spitting ode to a German serial killer.

The intricate geometry inside this Baroque-style dome was designed to create "terror of the human soul."

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

This futuristic German television spire is actually the world's largest digital clock.

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

A local student's chance encounter with Keith Haring led to the creation of one of Europe's largest murals.

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

Stare out over the lagoon and beyond from this 10th-century campanile on the island where the city of Venice began.

Böttcherstraße's bells, extolling Nordic virtues and the great conquerors of the world.

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

Memorials at a Florence railway station remember the citizens who were deported from Italy and sent to extermination camps.

Every hour the doors open to reenact the legend of the heroic mayor who saved his town by drinking a gallon of wine.

Where Venice's gondolas go for a tune-up.

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

One of the world's oldest working clocks is curiously missing the Zodiac sign of Libra.

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

The small peaceful island off the Venice tourist circuit is where the city began more than 1,500 years ago.

Twisted buildings adorn the banks of the Rhine river.

The last bastion of Roman presence north of the Alps looms over a German town.

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

Southern Italy's spinning top village.

Venice's island of the dead.