It is one of Egypt's enduring mysteries. What happened to Nefertiti and her husband, Akhenaten - the radical king, and likely father of King Tut? In a dark and mysterious tomb located in the Valley of the Kings, there is a small chamber with two mummies without sarcophagi or wrappings. At times, both have been identified as Queen Nefertiti by scholars, filmmakers and historians. But the evidence has been circumstantial at best.

It is possible that only one per cent of the wonders of ancient Egypt have been discovered, but now, thanks to a pioneering approach to archaeology, that is about to change. Dr. Sarah Parcak uses satellites to probe beneath the sands, where she has found cities, temples and pyramids. Now, with Dallas Campbell and Liz Bonnin, she heads to Egypt to discover if these magnificent buildings are really there.