The building process of the Egyptian pyramids has been the subject of many publications. However, a thorough review of this literature reveals that only certain aspects of this process have been studied in isolation, without taking into account the interaction between various activities involved, such as quarrying, transportation and building and without a sound quantitative basis. The present study aims at filling this gap by means of an integrated mathematical model. Attention is focussed on the largest pyramid, the one built by Cheops. The model simulates an efficient project co-ordination...