Wallabies live naturally on this Irish island.

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

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

Huge standing stones mark a site of megalithic mystery.

An 80-year-old plane tree is devouring an iron bench at Ireland's oldest law school.

The oldest public library in Ireland.

The mummified heart of a saint lives on in this church—after a brief hiatus when it was stolen.

An Iron Age fort on the edge of a seaside cliff offers a glimpse into an ancient, mystical world.

A sacred well steeped in Pagan roots on the West Coast of Ireland.

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

Local legend says the remains of Father Christmas lie within the medieval grounds.

An unusual manor of stunning beauty, born out of a crippling disease.

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

Dublin's "Dead Zoo" serves as a window to Victorian museum design.

An ancient neolithic tomb that only sees the sun twice a year.

The oldest inn in Kilkenny was established by the first convicted witch in Ireland.

A remarkably intact castle that once was the largest in Ireland.

One of Ireland's most infamous prisons for rebels including men, women and children.

Obelisks and stone pineapples in the Irish countryside.

A museum that cashes in on its infamous little people while teaching you a thing or two about the Irish fey.

This floating garden in the sky is straight out of a fairy tale, but the real thing is nothing short of magical.

This ancient Irish religious site is covered in ancient carvings, many of which have barely aged.

The oldest pub in Ireland may also be the oldest surviving bar in the entire world.

This Irish show cave is said to have been the site of a Viking massacre that claimed 1,000 lives.