For centuries no one knew there were hundreds of bones and precious artwork hidden beneath this Swiss church.

Plundered and left asunder by grave robbers, this ancient necropolis has been painstakingly pieced back together.

Mortarless walls that stretch for miles are a lovely solution for creating grazing land in the harsh terrain of the Aran Islands.

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

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

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

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

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

A proud bronze billy stands as an eternal symbol of Ireland's oldest festival, where a goat is made king.

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

Achill's most recently abandoned village dates back to to the Age of Enlightenment.

A pretty park of over 1,600 olive trees that grew from just three saplings brought over from Spain.

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

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

Local legends say that fairies used to dance in the moonlight here and invite handsome young men into their grottoes.

This small Irish village suffered the greatest loss of life when the Titanic sank.

A tiny village in Wales claims the name of a noble medieval hound slain for a crime he didn't commit.

This 14th century tower house was once the home of Irish poet W.B. Yeats.

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

Huge standing stones mark a site of megalithic mystery.

The world's largest prehistoric copper mine had 30,000 animal bones scattered throughout the maze of passageways.

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

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

An abandoned quarrying village turned commune is now a hub for learning the Welsh language.