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 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.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

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

The crumbling ruins of an abandoned 12th-century monastery.

These narrow stone granaries have been used to store and dry out grain for hundreds of years.

This Gallo-Roman sanctuary is dedicated to Serápis, god of the underworld.

Entire apothecaries are on display at this Lisbon museum, which explores the history of medicine.

This enigmatic Roman tower lurks just outside Belmonte.

The extravagance of Portugal’s "Pink Palace" resulted in a noble title being awarded to its owner.

This little-known national museum houses over 40,000 works of art from across the world.

Come for the bread-themed puppet show, stay for the buffet.

A chunk of the "true cross" is held in this small Portuguese church where modern day exorcisms are said to be common place.

Nestled in the mountains of Portugal is a tiny village made almost entirely of schist.

One of the few places in Portugal where the Celtic ritual of wearing large wooden masks is still practiced.

Pagan monument converted to Christianity with the population.

A micronation on an islet along the coast of a Portuguese island.

An honorary saint of the people, Maria Adelaide became an incorrupt corpse, the clothes intact, exhaling “a strong scent of roses.”

Building owners can take out tiles for free at this repository for historic building materials.

This now abandoned restaurant provides some of the most amazing views of Lisboa.

A windswept necropolis carved into the rocks overlooks the "most Portuguese town in Portugal."

This unassuming chapel in Portugal plays host to a ghoulish collection of bones.