Huge standing stones mark a site of megalithic mystery.

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

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

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

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

This pub built its reputation pouring post-shift pints for employees of the cemetery with which it shares a wall.

This ancient Irish landscape boasts hundreds of legendary ruins.

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

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

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

An 1814 castle that hosts an exhibit of "explorabilia".

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

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

The home of Ireland's last leprechauns is officially protected by the European Union.

This Irish museum in a historic 19th century market pays tribute to the glory of butter.

A stunning Victorian abbey and walled garden on a lakefront.

There might not be much left of these Irish ruins, but their linguistic legacy is still going strong.

The world's toughest modern Christian pilgrimage leads directly to the gates of Hell.

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

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

Traveling this mountain pass reveals quaint stone buildings, stunning Irish scenery, and a bridge said to grant wishes.

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

A spectacular hidden beach in Ireland has the dark, disturbing nickname of "Murder Hole Beach."

More than 5,000 artifacts donated by the people of the city, plus a room entirely devoted to the band U2.