The ruins of a medieval seminary some say is the oldest university site in Scotland.

A dark Victorian well house now plays host to mystical waters and pagan shrines.

The discovery of this Neolithic settlement, which contained a Stone Age "cathedral," threw archaeologists for a loop.

This long-distance walking route follows the Prime Meridian line as it passes through England.

This ancient bridge made of stone slabs is said to be reserved for the devil to sunbathe.

Much of what constituted mid-century Liverpool now litters a beach outside of town.

Perhaps the only prehistoric monument with its very own public bus stop.

The abandoned fishing village was swept right into the sea.

Picturesque ruins once held off mighty armies.

This ruined 15th-century hermitage is steeped in myth and mystery.

This trio of neolithic stone monuments are fabled to be a king and his knights that were petrified by a witch.

The farthest northwesterly point of the British mainland is one of the most remote places in the Scottish Highlands.

It's possible to walk inside one of the largest Neolithic tombs in Britain.

These unique stepping stones hug a river's edge to take hikers on a journey through a limestone gorge.

A sturdy relic of Britain's once crucial gunpowder industry is now a haunting Cornish ruin.

A mysterious ruin shrouded in more folklore than fact.

From here, the loch appears to take the shape of mainland Scotland.

The remains of centuries of copper mining appear like an alien landscape.

This mysterious hilltop collection of Druid carvings isn't quite what it seems.

The 5,000-year-old megalith is believed to be Scotland's tallest standing stone.

65 million-year-old chalk outcroppings mark the end of the Jurassic Coast.

The view from this giant Stone Age toad is unexpectedly beautiful.

The dramatic remains of an abandoned farmhouse sit high on the edge of a remote hillside.

Now nearly dry, this lake is said to be the ancient home of the Lady of the Lake, and was once thought to be bottomless.