The ancient tomb acts as a calendar that keeps perfect time.

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

A stunning Victorian abbey and walled garden on a lakefront.

This 30-foot pile of rocks may be the grave of a mythological Irish queen.

Wander among the abandoned ruins of this once-powerful medieval town.

A spectacular hidden beach in Ireland has the dark, disturbing nickname of "Murder Hole Beach."

A corkscrew-shaped barn in Ireland.

An important pilgrimage site for pagans and early Christians, named for a Celtic goddess-turned-saint.

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

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

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

Dr Barnes' $25 billion private collection of art and arboretum.

World's first "penitentiary," meant to be humane, drove men insane.

One poet's handmade, anachronistic home.

Haunting and beautiful trees, doomed to die.

This quirky roadside attraction dives into the many theories surrounding North America's most infamous hairy cryptid.

Tiki luxury on Nob Hill.