Wallabies live naturally on this Irish island.

Huge standing stones mark a site of megalithic mystery.

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

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

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

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.

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

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

After being destroyed by IRA sympathizers, the ruins of this stately Irish manor have sat vacant for decades.

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

This ancient Irish landscape boasts hundreds of legendary ruins.

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.

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

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

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

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

This controversial Irish show cave is home to a massive formation known as the Great Stalactite.

Once the longest bridge in Ireland, this rusting span sits abandoned and overrun by nature.

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

A stunning Victorian abbey and walled garden on a lakefront.

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.