Oliver Cromwell once seized the land under this house, which included the ruins of a medieval abbey that the owner used to build his stately home.

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

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

The remains of this deep, dark mine have left behind a haunting rocky warren of tunnels.

A tribute to the incredible generosity the Choctaw Nation showed the Irish people during the Great Famine.

A steam trawler with a whiskey-soaked history driven ashore in 1960 resides rusty but still standing on the shoreline.

The oldest licensed distillery in Ireland.

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

Ireland's most remarkable collection of these curious cone-shaped houses is worth the buzz.

Though they've since been renamed, these two streets hint at Dublin's darker days.

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

Just a few miles off the western coast of Ireland lies an isle steeped in Irish literary history.

The ruins of an 800-year-old monastery boasts the tallest round tower in Ireland.

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

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

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

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

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

Obelisks and stone pineapples in the Irish countryside.

The oldest inn in Kilkenny was established by the first convicted witch in Ireland.

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.

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

One of the most popular megalithic sites in Ireland stands as a humbler version of Stonehenge.