A 14th-century abbey founded by a forest-loving order of monks now sits in the center of a pristine nature preserve.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

The largest Canadian war cemetery in Italy commemorates those who died in one of the bloodiest battles of the Italian campaign during World War II.

These ruins on Mont Tantané dates back to the Iron Age, but there is limited evidence for why a village was built so far from water or other resources.

An unremarkable wooden wheel built into the side of one of Rome's oldest hospitals was part of a policy to reduce infant exposure.

An abandoned shopping gallery built during Fascist Italy tucked in the center of Palermo.

This enormous sinkhole hides a secret world created from divine wrath.

One of several skulls claiming to belong to the beheaded St. John the Baptist is on display at this Roman church.

Ruins of a 10th century church tucked away deep in a botanical garden.

Jesus' footprints and the first catacombs in the world.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.