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

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

A moody and picturesque riverside ruin overgrown with vegetation.

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

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

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

The enchanting archway is the only surviving portal into Dublin's lost medieval wall.

One of the most popular megalithic sites in Ireland stands as a humbler version of Stonehenge.

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

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

The world of the ancient Celtic civilization explained through a bewitching 11 acre garden.

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

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

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

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

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

Huge standing stones mark a site of megalithic mystery.

This supermarket offers shoppers a window into the past alongside their groceries.

The remains of a majestic house that was once stood in the crosshairs of the Irish Republican Army.

A mysterious Neolithic tomb is perched along the edge of a modern golf course.

A corkscrew-shaped barn in Ireland.

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