This Irish museum in a historic 19th century market pays tribute to the glory of butter.

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

An 1814 castle that hosts an exhibit of "explorabilia".

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.

An unusual manor of stunning beauty, born out of a crippling disease.

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 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.

A museum that cashes in on its infamous little people while teaching you a thing or two about the Irish fey.

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

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

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

The largest cemetery in the American Southeast is a hidden gem near the heart of Atlanta.

Civil War soldiers, captains of industry, and paupers all interred on historic grounds.

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the century.

One of the oldest medical collections in Europe focusing on rare surgical instruments.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

This massive library holds what was once the largest book collection in the world.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Notorious artist squat renovated into legal studios.