The Lost Pyramids of CaralThis is a pyramid that ranks as one of the largest in the world, period. It's one that covers on the surface of the mound it covers like 15 football fields. The volume of it is some, we calculate something like two million cubic metres of material. The magnificent ancient city of pyramids at Caral in Peru hit the headlines in 2001. The site is a thousand years older than the earliest known civilization in the Americas and, at 2,627 BC, is as old as the pyramids of Egypt.

Many now believe it is the fabled missing link of archeology - a 'mother city'. If so, then these extraordinary findings could finally answer one of the great questions of archeology: why did humans become civilized? (Excerpt from bbc.co.uk)

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