Many of the world's most famous, impressive and amazing archaeological sites on today's tourist trails were pre-eminent sacred locations and structures to their builders. This is a whistle-stop tour of the best of the world's ancient sites, relating the stories attached to the sites, and exploring how and why they were sacred. The sites of Knossos in Crete, the Nazca Lines in Peru and the Aztec capital of Templo Mayor are all featured here.