This Iron Age hill fort remained hidden until a series of storms revealed its history.

This reconstructed Norman castle is the world's most accurate, from location to livestock.

The final resting place of a celebrated First Nations man who traveled through England with a snake oil salesman.

The remains of this 2nd-century Roman temple are incorporated into a modern building.

UNESCO-protected ancient burial ground.

Hidden in the hills is a mysterious stone structure, known only to a few.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

Seaside ruins of a settlement that date back to the first century B.C.

The remains of the oldest synagogue in Britain lay forgotten for seven centuries, hidden under a humble shop.

The suspected burial mound of legendary Viking Björn Ironside.

These medieval monastery ruins are surprisingly overlooked by most tourists.

The final resting place of the poets Shelley and Keats.

Used as an example in one of the first dictionary entries for "museum" in 1706.

Hidden just under the waters around this Turkish island are the ruins of a once great city.

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

This hauntingly beautiful cemetery outside a medieval citadel is full of winding paths and ivy-covered graves.

Locals call this magical moss-covered walkway the "Emerald Path."

A network of ancient Egyptian tombs built into the cliff face along the Nile.

A swamp that was the site of prehistoric water burials also managed to preserve its corpses for millennia.