This plaque remembers a grave mistake that led to one local woman being buried alive.

A reportedly haunted 14th-century church is curiously facing the “wrong direction.”

These medieval skyscrapers dominate the skyline of this small Tuscan town.

Medieval torture techniques with a modern conscience.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

Architectureal fantasy quarter of Rome.

The oldest cemetery of modern-day Athens blends the modern and ancient worlds.

An ancient octagonal weather station named for the eight Greek gods of wind.

This mystical orb covered in strange symbols is thought to have been used in ancient Greek magical rituals.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

This center tells the story of one of the most famous battles in Irish history.

The ruins of a sixth-century monastery sit on the banks of the River Shannon.

The largest stone circle in Ireland.

This cemetery overlooking the Benbulben rock formation is the final resting place of one of Ireland's most beloved poets.

Impressive mining ruins overlook a spectacular view of Ireland's Copper Coast.

This Neolithic passage tomb forms part of a World Heritage Site.

Behemoth, cannon-like telescope operated by generations of Irish earls.

These imposing walls and towers look more like the ruins of a fortress than a monastery.

Ruins battered by centuries of war and disaster offer a wondrous glimpse of medieval Ireland.

This ancient Irish tower could easily have stood in for Rapunzel's prison.

The world's tallest box hedge is found in a delightful garden.

The ruins of a medieval monastery named after a type of tree.

This single room has survived the centuries with almost no deterioration.