Where's the money?

The jungles, high plains and mountain ranges of South America are full of secrets, and the search for the ancient civilisations which inhabited them continually throws up surprises.

In a new television series for BBC 4, Lost Kingdoms of South America, archaeologist and Americas curator at the British Museum Dr Jago Cooper explores mountain citadels and sprawling stone ruins to learn about the peoples who lived in them long before the arrival of the Incas and Spanish conquistadors.