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

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

An oddly conical beacon perched atop beautiful Irish cliffs.

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

A mysterious Neolithic tomb is perched along the edge of a modern golf course.

The severed head of a 17th-century Irish martyr lies within an intricate golden shrine.

Ireland's only German military cemetery holds the remains of a spy who was moved there under the cover of darkness.

Experience what life was like in Ireland during the Viking and medieval ages.

A strange egg in a mucky bog of western Ireland marks the spot of an aviation milestone.

An ancient holy well said to be used by the patron saint of sailors and travelers, lost in the boggy west of Valentia Island.

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

This 5,300-year-old tomb with mysterious carvings crowns an Irish mountain.

Ancient Bronze Age rampart that was used into the middle ages.

A stone wall that mysteriously moved three feet from its foundation.

These imposing walls and towers look more like the ruins of a fortress than a monastery.

Impressive mining ruins overlook a spectacular view of Ireland's Copper Coast.

Ruins battered by centuries of war and disaster offer a wondrous glimpse of medieval Ireland.

On the Irish coast, 18 members of the Howard family are eternally resting in an Egyptian pyramid.

The skeleton of a whale that beached itself in this Irish town is now on display in their public park.

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

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.

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

Modern sundial uses ancient methods to tell time and date perfectly.

The largest portal tomb in Europe has a capstone weighing around 150 tons.