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

After it was swallowed by a Georgian mansion, this medieval castle remained forgotten for centuries.

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

A standing relief of a Norman knight whose posture marks him as a Crusader.

A collection of housewares from recent Irish history adjoined by a tower from ancient Irish history.

A devastating booze inferno poured through the streets, claiming several victims who drank it.

This neon landmark has been posing this deadpan question to follicly-challenged Dubliners for over 50 years.

The oldest licensed distillery in Ireland.

This Bronze Age tomb is the centerpiece of a clearing within a beautiful Irish forest.

You can see three Irish counties from this Neolithic hillside fort, once the seat of the Kingdom of Ailech.

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

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

Just another ancient, mysterious Irish stone circle.

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

An important pilgrimage site for pagans and early Christians, named for a Celtic goddess-turned-saint.

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

The block of aged dairy is probably still edible after 2,300 years in a peat bog.

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

Huge standing stones mark a site of megalithic mystery.

This courtly monument celebrates an influential comedian who turned taking the piss out of the powers-that-be into an art.

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

This is the largest cemetery in Ireland and the first cemetery museum in the world.

At this cozy bar tucked down a hidden Galway backroad, Guinness makes the Gaelic come out.

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