  In recent years, different scientific disciplines, from Physics to
Egyptology, from Geology to Archaeoastronomy, evidenced a series of clues
pointing to the possibility that the original project of the pyramid complex of
Khufu at Giza included also the project of the second pyramid complex at the
same site, that of Khafra. The aim of the present paper is to discuss this
issue in a systematic fashion and to explore its consequences on the way the
ancient Egyptians conceived and built monuments and entire landscapes during
the Old Kingdom.
