A former fisherman's hut deemed too small for habitation is now a delightful tourist draw.

One of the world's oldest trees comes with a Welsh legend intertwining it with a spirit prophesying death.

This neolithic stone grave has been altered and restored so often its now more neo than lithic.

Picturesque ruins once held off mighty armies.

This well-preserved Cistercian Abbey in a romantic pastoral setting has inspired artists like the poet Wordsworth.

High Victorian fantasy created a fairytale castle out of a ruined fortress in Wales.

A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

A rocky sea serpent hides caves, blowholes, and a spectacular natural bridge.

Three bridges straddle a stream, one stacked upon the other.

The stately remains of Llywelyn the Great's mighty fortress.

The oldest continual pilgrimage site in Britain was supposedly created by a gruesome beheading.

A subterranean playground in an abandoned slate mine.

An 18th-century lighthouse built on a 16th-century castle is now a monument to the maritime beacons of Scotland.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

These fantastically named natural pools look like something out of a Scottish myth.

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

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 atmospheric road was never meant to be so creepy.

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

Amidst the bustling streets of Dublin, there is a hushed garden that is dedicated to "All those who gave their lives in the cause of Irish Freedom."

Oliver Cromwell once seized the land under this house, which included the ruins of a medieval abbey that the owner used to build his stately home.