The ideas and explanations presented in this book regarding the purpose and origination of one of the most enigmatic and ancient monuments in the world known under the name "Maiden Tower" are very important not only for the history of Azerbaijan, but also for the entire history of mankind. This book helps to understand better the ancient history of Baku, the capital of Azerbaijan, and significant place of the Maiden Tower in the life of ancient communities that existed in the region of Caucasus and Asia Minor more than 2000 years ago. Discovery of the real meaning of the Maiden Tower in Baku may also help to find some missing links that scholars still search for to explain the origin of the ancient Egyptian civilization.