On a windswept ridge in the Outer Hebrides, thirteen ancient stones ring a towering monolith — a 5,000-year-old monument tied to the moon and the far horizon.

A short distance along the coast from Elmina stands another great white fortress, larger and in some ways even more terrible in its history: Cape Coast Castle, the headquarters of

Rising in Peru’s Supe Valley around 2600 BCE, Caral is the oldest known city in the Americas, built with pyramids, sunken plazas, and no evidence of writing, pottery, or war.

Caral, in the Supe Valley of Peru, is the oldest known city in the Americas — built with pyramids, sunken plazas, and clever earthquake-proof foundations at the very same time as the Great Pyramid of Egypt, yet with almost no sign of war.

In a Peruvian desert, a lost civilization built pyramids at the same time as the Egyptians, with no contact between them. Inside Caral, the oldest known city in the Americas.

In a dry valley a little inland from the Peruvian coast stand the eroded remains of what may be the oldest city in all the Americas. Caral, in the Supe

In the very centre of the Welsh capital, ringed by a great park and the bustle of the modern city, stands a castle unlike any other, a place where two

In southern Brittany, more than 3,000 standing stones march in vast rows across the fields — older than Stonehenge, older than the pyramids, and still unexplained.

On a low headland overlooking the Gulf of Tunis lie the ruins of a city that once came close to ruling the western Mediterranean. This was Carthage, the great maritime

Rising alone on a low hill in the sun-baked country of southern Italy, Castel del Monte is unlike any other castle you have ever seen. It is a perfect octagon,