Mortarless walls that stretch for miles are a lovely solution for creating grazing land in the harsh terrain of the Aran Islands.

The modern birthplace of Irish freedom.

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

You can see three Irish counties from this Neolithic hillside fort, once the seat of the Kingdom of Ailech.

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

This single room has survived the centuries with almost no deterioration.

The block of aged dairy is probably still edible after 2,300 years in a peat bog.

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

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

The world's toughest modern Christian pilgrimage leads directly to the gates of Hell.

A stunning Victorian abbey and walled garden on a lakefront.

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

Dublin's "Dead Zoo" serves as a window to Victorian museum design.

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.

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

A unique look into the bowels of a century-old funicular.

This medieval cathedral houses stained-glass windows featuring saints and pretzels.

These paved rills bring freshwater into Altstadt and could spell wedding bells for whoever stumbles into the waters.

A famed artist's inspiring work of peace and tolerance.

The last Tsar of Russia constructed this private church just so he could attend services when visiting his wife's hometown.

A memorial for a young woman and her ghost, which are claimed to have caused countless deathly shipwrecks.

The castle where Martin Luther secretly translated the New Testament from Greek to German while in hiding.

Fantastic views and thousands of love locks.