From the development of monumental architecture around 3,000 BC to the fabulous edifices that rose up from the desert plains of Giza, these are amongst the most remarkable structures in world history. Their story has given rise to a set of incredible legends: spaceships, ley lines, mysterious goings on... Is it fact or fiction? Joyce Tyldesley, writer, lecturer and broadcaster on Ancient Egypt, cuts away modern myth and prejudice to reveal the truth behind these astonishing structures.