This European portal tomb has a capstone that weighs around 150 tons.

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

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

This Neolithic passage tomb forms part of a World Heritage Site.

See some of the world's greatest racing horses at this idyllic thoroughbred breeding facility and garden complex.

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.

An ancient chamber filled with wonderful rock art and a Neolithic carving of a human face.

A restaurant with an extensive Irish whiskey bar also has several first editions of famous works by Irish authors.

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

An eccentric garden of sculptures crafted in India decorate an Irish green space dedicated to Alan Turing.

Obelisks and stone pineapples in the Irish countryside.

A corkscrew-shaped barn in Ireland.

Ireland's only German military cemetery holds the remains of a spy who was moved there under the cover of darkness.

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

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

After it was swallowed by a Georgian mansion, this medieval castle remained forgotten for centuries.

This is the largest cemetery in Ireland and the first cemetery museum in the world.

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

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

A particularly disconcerting tribute to Irish martyrs.

The burial place of 14 of the executed leaders of the Easter Rising.

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."

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

An Irish church where an 800-year-old mummy is reaching out of his coffin as if to shake hands.