While only two of the ancient buildings at this site are actually churches this was one of the earliest Irish pilgrimage sites ever.

An Iron Age fort on the edge of a seaside cliff offers a glimpse into an ancient, mystical world.

A sacred well steeped in Pagan roots on the West Coast of Ireland.

A hugely vast Irish landscape of barren rock that stretches for miles.

Wander among the abandoned ruins of this once-powerful medieval town.

The oldest pub in Ireland may also be the oldest surviving bar in the entire world.

At this cozy bar tucked down a hidden Galway backroad, Guinness makes the Gaelic come out.

A stunning Victorian abbey and walled garden on a lakefront.

These murals stand as reminders to the troubled history of this Northern Ireland city.

A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.

This colorful and fiery mural depicts the Irish folk story of the beloved hero Cuchulain.

An enigmatic monument to the Irish revolutionary who plotted an uprising against British rule.

One of Ireland's most infamous prisons for rebels including men, women and children.

A restaurant with an extensive Irish whiskey bar also has several first editions of famous works by Irish authors.

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

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

Once the longest bridge in Ireland, this rusting span sits abandoned and overrun by nature.

An early 20th-century sanatorium, long abandoned and now being reclaimed by nature.

Nature is slowly overtaking this disused cemetery on the outskirts of Brussels.

This collection of solar timekeepers includes the world's first digital sundial.

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

This sprawling Belgian fort was once thought of as impenetrable but now it is simply an abandoned relic.

The "stairway to heaven" lookout tower was built to resist weather, arson, and the laws of physics.

A 14th-century fortified keep showcases the masterpieces of an ingenious 20th-century clockmaker.