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.

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

An oddly conical beacon perched atop beautiful Irish cliffs.

The eerie remains of one of Ireland's oldest castles, said to be haunted by the ghost of a woman who brings ill fate.

An Irish town has built a statue to a silent film actor simply thanks to the holidays he once spent there.

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

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

A stunning Victorian abbey and walled garden on a lakefront.

This World War II relic let Allied pilots know they were entering neutral airspace.

The inscribed stone at Kilnasaggart is a remnant from nearly a millennium ago.

This Italian-style temple replica has been threatening to fall off the Irish coast for hundreds of years.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

Northern Ireland's Brobdingnagian stepping stones.

The ship built to ferry passengers and goods to the doomed Titanic is now the last remaining White Star Line vessel.

A museum marks and documents the site of the Titanic's launch.

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

This Neolithic passage tomb forms part of a World Heritage Site.

A guitar mounted on a wall in Temple Bar honors the Irish musician.

Longest road tunnel in the world features an air treatment plant and the illusion of daylight.

This roadside attraction looks like a flying saucer parked atop the tundra.

The convergence of two currents makes this a surprisingly pleasant getaway in the Arctic Circle.

This beloved wartime mascot has been honored with not just one, but two statues.

At the very tippity-top of Europe is a cliff from which you can view the midnight sun.