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

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

This colorful and fiery mural depicts the Irish folk story of the beloved hero Cuchulain.

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

The modern birthplace of Irish freedom.

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

An ancient chamber filled with wonderful rock art and a Neolithic carving of a human face.

A restaurant with an extensive Irish whiskey bar also has several first editions of famous works by Irish authors.

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

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

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

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

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

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

Certain traditions prevail on the least-visited island of the Aran Islands.

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

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

Just another ancient, mysterious Irish stone circle.

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

The house where the writer spent his formative years.

This ancient Irish landscape boasts hundreds of legendary ruins.

This ancient Irish tower could easily have stood in for Rapunzel's prison.

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

Huge standing stones mark a site of megalithic mystery.