This legendary city has been a tourist attraction for centuries.

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

The hallucinogenic center of the ancient world.

A spectacular cave and a beguiling lake.

Monasteries on rock pillars, once accessible only by frayed ropes.

The 3.8 billion-year-old rock proves that tectonic plates may have been shifting longer than we thought.

On the Irish coast, 18 members of the Howard family are eternally resting in an Egyptian pyramid.

This burial pyramid in central Ireland is thousands of miles and thousands of years away from its Egyptian inspiration.

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

Wallabies live naturally on this Irish island.

This ancient Irish tower could easily have stood in for Rapunzel's prison.

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

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

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

A rocky Irish outcropping with a history of wealth, conflict, and ruin.

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

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

A corkscrew-shaped barn in Ireland.

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.

This Irish show cave is said to have been the site of a Viking massacre that claimed 1,000 lives.

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

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

A tiny microvalley etched into the side of Knocknarea Mountain hides another world.