The world's toughest modern Christian pilgrimage leads directly to the gates of Hell.

A rocky Irish outcropping with a history of wealth, conflict, and ruin.

A stunning Victorian abbey and walled garden on a lakefront.

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

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

Traveling this mountain pass reveals quaint stone buildings, stunning Irish scenery, and a bridge said to grant wishes.

A corkscrew-shaped barn in Ireland.

Obelisks and stone pineapples in the Irish countryside.

A spectacular hidden beach in Ireland has the dark, disturbing nickname of "Murder Hole Beach."

A remarkably intact castle that once was the largest in Ireland.

A moody and picturesque riverside ruin overgrown with vegetation.

Local legend says the remains of Father Christmas lie within the medieval grounds.

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

The enchanting archway is the only surviving portal into Dublin's lost medieval wall.

A tiny microvalley etched into the side of Knocknarea Mountain hides another world.

The world of the ancient Celtic civilization explained through a bewitching 11 acre garden.

This floating garden in the sky is straight out of a fairy tale, but the real thing is nothing short of magical.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

This Irish show cave is said to have been the site of a Viking massacre that claimed 1,000 lives.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

This Edwardian style home doubles as a magnificent local art gallery.

Over 70 independent businesses have set up shop in this former Victorian department store.

A churchyard in Ardsley houses a memorial dedicated to the victims of England’s worst mining disaster.

This former school is now abandoned and a canvas for graffiti artists.