The ancient tomb acts as a calendar that keeps perfect time.

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

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

A stunning Victorian abbey and walled garden on a lakefront.

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

The ruins of a monastery that dates to the 7th century.

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

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

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

Mortarless walls that stretch for miles are a lovely solution for creating grazing land in the harsh terrain of the Aran Islands.

These moss-covered medieval ruins tower atop the smallest of Ireland's Aran Islands.

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

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

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

A monument to a beloved aquatic folk hero in the Irish town of Dingle.

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

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

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

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

A museum dedicated to the tragedy of Bloody Sunday.

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

This statue celebrating everyday life in Dublin has a few unsavory nicknames.

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

A particularly disconcerting tribute to Irish martyrs.