This controversial Irish show cave is home to a massive formation known as the Great Stalactite.

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

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

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

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

This natural sea arch highlights Ireland's rugged coastal beauty.

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

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

An ancient holy well said to be used by the patron saint of sailors and travelers, lost in the boggy west of Valentia Island.

An abandoned faux-pub made famous by a Guinness commercial.

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

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

Traveling this mountain pass reveals quaint stone buildings, stunning Irish scenery, and a bridge said to grant wishes.

A stunning medieval castle owned and restored by the famed actor Jeremy Irons.

This floating garden in the sky is straight out of a fairy tale, but the real thing is nothing short of magical.

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

The skeleton of a whale that beached itself in this Irish town is now on display in their public park.

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

The whiskey producer's archives includes a historical list of infractions committed by and associated penalties exacted upon employees.

Impressive mining ruins overlook a spectacular view of Ireland's Copper Coast.

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

After being destroyed by IRA sympathizers, the ruins of this stately Irish manor have sat vacant for decades.

Abandoned Nazi train station turned underground astroparticle laboratory.

A Franco-era dam flooded (almost) everyone out of this centuries-old Aragonese town.