The Avenue of the Sphinxes has been unearthed in modern Luxor (the ancient capital city of Thebes) with the most extensive excavation in Egyptian history. This avenue connects Karnak Temple with Luxor Temple, where sphinxes and ram-headed statues line both sides. The ancient Opet Festival celebrated the annual flooding of the Nile and included a ritual procession following this path. Using cutting-edge CGI, investigators reveal the hidden secrets of the sphinxes.