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

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

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

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

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

The inscribed stone at Kilnasaggart is a remnant from nearly a millennium ago.

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

A stone wall that mysteriously moved three feet from its foundation.

Huge standing stones mark a site of megalithic mystery.

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

The ancient tomb acts as a calendar that keeps perfect time.

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.

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

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

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

Amidst the bustling streets of Dublin, there is a hushed garden that is dedicated to "All those who gave their lives in the cause of Irish Freedom."

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

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

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

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

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

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

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

A genuine Little Shop of Horrors.