A wildlife paradise, this island is one of the world’s most important habitats for burrow nesting seabirds.

The world's largest prehistoric copper mine had 30,000 animal bones scattered throughout the maze of passageways.

A spiral staircase connects the limestone cave with Pembroke Castle, birthplace of King Henry VII.

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

A real-life Professor Snape once taught in this Welsh university building, which students of course nicknamed “Hogwarts.”

Picturesque ruins once held off mighty armies.

This Welsh village gave itself a ridiculous name in a publicity stunt a century ahead of its time.

This Roman amphitheater is said to be King Arthur's legendary Round Table.

This lonely cast-iron structure is the only wave-washed lighthouse of its kind left in all of Britain.

These haunting ruins belong to an ancient village that once had one hell of a view.

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

One family's environment-friendly hobbit-house in Wales.

The Stonehenge of Wales is one of the grandest neolithic dolmens still in existence.

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

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

A 4,500-year-old forest is slowly being revealed from beneath the sands of a Welsh beach.

A breathtaking flower tunnel bursts with beautiful golden blossoms.

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

A hermit's tiny cell built into the cliffside that saved him in South Pembrokeshire.

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

A hidden tunnel leads to an abandoned slate quarry that's now a secret swimming spot guarded by cliffs.

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

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

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