The so-called Serapeum in Egypt has slowly getting some attention from people who are familiar with advanced technological features in ancient ruins all over the world. Officially the underground tunnels in Saqqara are called a Serpeum as archaeologists claim they have all been used for the burial of bulls during the Egyptian Dynastic time periods. Most people take the archaeologists for their word, because they are supposed to know everything about the history of mankind. However, when you take a closer look at the Serapeum there are some immense problems with their theories. The Smaller Tunnels indeed contained embalmed bulls and many other items. But the main Gallery is totally different, and contains huge granite coffers which could never have been cut and fashioned by the primitive tools of the dynastic Egyptians. Even more, these coffers could have been made only by highly advanced technological machinery. The entire Main Gallery and its coffers clearly show all the signs of being the product of a once ancient advanced technological society, probably from the times of Atlantis.
I have made an article that goes more into depth about these issues; go and have a look at The Serapeum of Saqqara: Atlantean Technological Devices