Follow the original medieval paths that wind through this intriguing section of the city.

An incredibly well-preserved piece of ninth-century Viking poop.

Giant statue of a disembodied head.

Catacombs turned marketplace.

Christ's blood preserved in a Belgian town.

Potato-peeling mannequins, Inca art, and a dangling tuber mobile help trace the history of fries at this Belgian museum.

The compass on its front was a handy tool for 17th-century merchants who needed to know the direction of the wind.

Inside this former medieval prison is a collection of objects designed to inflict unbelievable pain and suffering on the human body and mind.

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

Each time a baby is born in Ghent, these streetlights flash in silent celebration.

Breathtaking and huge 430 year old maps of Italy.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

A monumental fountain in Rome features a large statue of Moses that has been criticized for centuries.

A sculpture serving as an homage to Pope John Paul II.

This park on the outskirts of Rome boasts two ancient Roman aqueducts and a medieval tower.

Gods clash with machines in a power plant regenerated as a museum.

Brass cobblestones mark the places where individual Holocaust victims were taken from their homes.

The remains of this 2nd-century Roman temple are incorporated into a modern building.

Inside this McDonald's you can dine on your Big Mac and fries next to a 2,500-year-old Roman wall.

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

These elaborate gothic monuments honor Verona's medieval lords.

A whale rib was used to advertise the store by the arch that offered exotic goods from far away.