Does the Great Pyramid really store the lost knowledge of the ancients? Was she that last of the Seven Wonders of the World, described as humanity's greatest achievement? Or maybe it is a container of the Mystery of all secrets, the disclosure of which will lead to the best understanding of what is space and what is a person who exists in this universal space. This book is the story of the adventures and discoveries of researchers and scientists who for two thousand years tried to penetrate the secrets of the Great Pyramid of Cheops.