Experience what life was like in Ireland during the Viking and medieval ages.

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

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

While only two of the ancient buildings at this site are actually churches this was one of the earliest Irish pilgrimage sites ever.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

This house is adorned with a serenade macabre from the Counter-Reformation period.

A tiny rural community in Switzerland was home to one of history's most shocking murders, and led to the banning of Absinthe for nearly a century.

Abbey built on the ruins of Roman catacombs.

The excellent Swiss museum of witchcraft is led by a modern witch.

Florentine Renaissance style building in Switzerland, home to the world's largest taxidermy Great White Shark.

The World Wide Web was created in this nondescript corridor at CERN.