A gravity-defying "devil's bridge" that has a surprising architectural feature for its stability.

This cafe offers a curated collection of treats and tipples made by monks and nuns.

A 16th-century horror show built in a lovely Italian garden.

Staves, storm-calling, and of course, necropants.

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

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

Ireland's most remarkable collection of these curious cone-shaped houses is worth the buzz.

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

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

A spiral staircase connects the limestone cave with Pembroke Castle, birthplace of King Henry VII.

Eerily lifelike effigies stare at everyone who enters this sanctuary.

The Stonehenge of Wales is one of the grandest neolithic dolmens still in existence.

Exquisite examples prehistoric bas-relief carvings.

An enormous collection of cars, figurines, signs, puppets, strollers and other collectibles.

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

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

The largest portal tomb in Europe has a capstone weighing around 150 tons.

This 18th-century fort surrounded by a moat was used to store gun powder and ammunition, and now sits in the middle of a large part in Dublin.

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

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

These gigantic skeletons tower over visitors and provide insight into the creatures that once ruled over Ireland.

The 19th-century pharmacy (now a used bookstore) was featured in James Joyce’s "Ulysses," and has changed very little to this day.

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

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