The decaying ruins of Wales' first asylum for the mentally ill.

Neolithic burial chambers hidden beside a village school.

This 6th-century church honors St. Tudno, the patron saint of Llandudno.

These precariously placed ruins harken back to a 13th-century castle.

The castle still holds traces of the abandoned Roman fort it was built atop.

A Neolithic tomb hidden among a spectacular boulder-strewn stretch of coast.

This 500-year-old Tudor home is a treasure trove of history and mystery.

A Neolithic burial tomb connected with a colorful array of legends.

The longest and tallest aqueduct in Britain can actually be sailed across.

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

A 19th-century funicular railway shuttles visitors up this surprising sea cliff to one of the world's largest camera obscuras.

Recently restored menagerie of Victorian-era beasts.

Stroll through Welsh history in a village of reconstructed structures.

The artist David Nash planted a circle of trees in 1977.

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

A subterranean playground in an abandoned slate mine.

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

At the United Kingdom's only residential library you can sleep among the books.

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

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

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

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