This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

The seaside ruins of an ancient salt production facility.

A look into the life of a Victorian-era prisoner.

The ruins of a stone tower with alleged (but unlikely) Roman origins.

Enthusiasts of the mid-20th century magician and comedian erected this statue in the small Welsh town in which he was born, even though the comedian only lived there for three years.

Roman ruins found on the outskirts of a small town on the North Wales coast have over time become a strong part of the community's identity.

Long before mobile phones or GPS were available, these sentry boxes provided help for motorists in need.

Associated with the famous wizard, it is said that when this oak tree falls, so will the town.

Since the Middle Ages, this stone has been used as a place to bless fishing boats moored at the nearby landing stage.

Evans's funeral had one of the largest attendances of any funeral in the history of Wales.

According to legend, this bell once belonged to a kingdom now lost beneath the waves.

Believed to be an execution site used by King Arthur after he was embarrassed.

Ospreys visit this location every year to nest.

This huge coastal nature reserve in Wales was a stand-in for the Arabian Peninsula in 'Lawrence of Arabia.'

This tall stone wall with no door and ill-matched windows was built centuries ago, and used as a shelter for domesticated pigeons.

A museum dedicated to Wales’ favorite—and strangest-looking—watercraft.

The remains of a 13th-century stronghold built by the Welsh prince known as Llywelyn the Last.

A grand mansion in rural mid-Wales gifted to the Welsh people by two sisters.

This tower is all that remains of a once-famed chapel.

This rocky outcrop served as a quarry for some of the bluestones that sit at the center of Stonehenge.

Legend has it that this stone moves down to the river sometimes to have a drink.

Tucked among the sand dunes overlooking a Welsh beach, a real-life tribute to a fictional elf.

This mural honoring a drowned village has become a symbol of Welsh pride and patriotism.

Also known as "Leicester's Folly," this almost cathedral was left unfinished and in ruins.