Possibly the oldest of Britain's ancient henges is also one of its most stark.

Scotland's oldest purpose-built concert hall houses an incredible collection of ornate, centuries-old keyboards.

A sea cave with a waterfall and Viking past

Nestled atop a wind-swept crag in the Scottish Highlands is a lonely memorial to a beloved hiker.

On a remote island, legend has it that a fiddler and his wife were turned to stone.

Bronze plates placed around this Scottish fishing village form a true-scale model of the solar system.

This volcanic plug boasts the longest recorded history of any Scottish stronghold.

Overlooking the burial ground is a tower designed to prevent thieves from snatching the recently deceased.

This alley off Edinburgh's Royal Mile contains remnants of the city's seedier history.

The U.K.'s first underground railway line is now a lively thoroughfare for runners and cyclists.

This abandoned oil depot produces world's longest echo in a manmade structure.

A historic cave in Scotland once served as a hiding place for a famous Covenanter.

A beautiful Greco-Roman structure houses a well once believed to have healing powers.

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

These ancient sea caves hold Britain's highest concentration of Pictish rock carvings.

Modern megaliths form this work of cosmic, Celtic landscape art.

The heart of a Scottish legend had a centuries-long journey before reaching its final resting place.

Thanks to both terrific preservation and historic vandalism this ancient site is known as the "Heart of Neolithic Orkney."

The only fixed chain and post trail in Scotland snakes its way along the base of a towering seaside cliff.

This Scottish burial tomb once held hundreds of ancient eagle bones.

Nestled amid the peaks and lochs of the Scottish Highlands, this inn and pub has played host to outlaws and ghosts.

Enter the world under the hill at this ancient UK burial chamber.

A hidden tunnel leads to a medieval queen's shrine buried beneath a parking lot.

This tiny island featuring 9th-century Viking ruins is only accessible at low tide.