These ominous lava formations were said to be an entrance to the netherworld so of course they inspired a famous metal band.

Learn about Iceland's hidden folk at this school dedicated to the study of elves.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Medicinal spa created with the discharge from a geothermal energy plant.

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

The ruins of a medieval monastery named after a type of tree.

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

These imposing walls and towers look more like the ruins of a fortress than a monastery.

A stunning Victorian abbey and walled garden on a lakefront.

The oldest licensed distillery in Ireland.

Huge standing stones mark a site of megalithic mystery.

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

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

More than 5,000 artifacts donated by the people of the city, plus a room entirely devoted to the band U2.

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

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

An ancient neolithic tomb that only sees the sun twice a year.

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

The oldest inn in Kilkenny was established by the first convicted witch in Ireland.

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

The oldest pub in Ireland may also be the oldest surviving bar in the entire world.

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

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

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