Pilgrimage site for star-crossed lovers.

The secret medieval communication system will whisk your words above the noise of the crowd.

Da Vinci's equestrian statue, 500 years in the making.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

150 or so scrounged-up lamps, chandeliers, and lanterns light up this alley in central Athens.

Famously misunderstood wonder of the ancient world

This 11th century tower is said to be the oldest building in Oxford.

A theatre built to house the rowdy Oxford graduation ceremonies became the stage for a debate about God's existence.

One of Europe's oldest libraries.

Every hour on the hour a naked heroine and her leering foil appear from this giant cuckoo clock.

All that remains of the only English cathedral destroyed in the Protestant Reformation.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

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

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

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

A red sandstone freestanding monolith rises out of the sea in northern Scotland.

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

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

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

A small island abbey is the final resting place of many medieval Scottish monarchs, including the real Macbeth.

The true age of this ancient stone circle is unknown, but its stunning vista isn't in question.

Largest lake in Great Britain measured by surface area.

The highest peak in the United Kingdom has a history of physics, specters, and a pilgrimage of strange objects.