A tiny microvalley etched into the side of Knocknarea Mountain hides another world.

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

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

On the Irish coast, 18 members of the Howard family are eternally resting in an Egyptian pyramid.

A corkscrew-shaped barn in Ireland.

Obelisks and stone pineapples in the Irish countryside.

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

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

The 19th-century pharmacy (now a used bookstore) was featured in James Joyce’s "Ulysses," and has changed very little to this day.

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

Oliver Cromwell once seized the land under this house, which included the ruins of a medieval abbey that the owner used to build his stately home.

A nun spent 16 years painting the stunning Celtic mural that covers the interior of this WWI memorial.

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

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