A meandering boardwalk across the bogland leads to a "stairway to heaven" with sublime views.

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

This 30-foot pile of rocks may be the grave of a mythological Irish queen.

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

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

A Neolithic passage tomb said to have sheltered two legendary Irish lovers.

An outstanding and haunting glimpse of the horrors of the Great Famine of Ireland.

This burial pyramid in central Ireland is thousands of miles and thousands of years away from its Egyptian inspiration.

This small Irish village suffered the greatest loss of life when the Titanic sank.

It's said this geological anomaly was caused when the Devil took a bite out of the Irish mountainside.

This modest plaza in Moneygall, Ireland has cashed in on its distant connection to the U.S. president.

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

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

This natural sea arch highlights Ireland's rugged coastal beauty.

An unusual manor of stunning beauty, born out of a crippling disease.

The world's only flying boat museum honors a small Irish village that sent 20th-century aviation to new heights.

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

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

This controversial Irish show cave is home to a massive formation known as the Great Stalactite.

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

This singular Irish dolmen is more Frank Lloyd Wright than upright stonehenge.

This 14th century tower house was once the home of Irish poet W.B. Yeats.

These barriers stand as stark reminders of Northern Ireland's troubled past.

A palatial former bank building now houses what may be the poshest art venue (and former Tesco) in Belfast.