BBC - Horizon - The Lost Pyramids Of Caral (2002)

It is one of humanity's epic journeys. Thousands of years ago people first came out of the wild and formed civilisation. They would build huge monuments, like the pyramids and all the great cities of the Ancient World, but why did they do it? What forces gave birth to civilisation? For years archaeologists have been trying to get back to when it all began to find the answer and now at last it seems they may have done it, for they are now exploring a lost city of pyramids in Peru. It is nearly five thousand years old and the story it tells about why we embarked on this great journey is more extraordinary than anyone had ever expected. Peru's desert coast, trapped between the Andes mountains and the Pacific Ocean. Nothing survives out here. Explorers once hurried through in search of the gold and the treasures of the Incas hidden in the mountains beyond, but no one stopped, but then seven years ago somebody did. Ruth Shady had heard of some mysterious unexplained mounds and, alone, set off through the desert to find them and then right in the middle of this dead land she found this: a huge hill rising out of the desert.