Serapeum of Saqqara (664–610 BC) of the Twenty-sixth Dynasty and later used by the Ptolemaic dynasty. The long boulevard leading to the ceremonial site, flanked by 600 sphinxes, likely was built under Nectanebo I, (379/8–361/0 BC) the founder of the thirtieth dynasty (the last native one). The temple was discovered by Auguste Mariette, who had gone to Egypt to collect Coptic-language manuscripts, but later grew interested in the remains of the Saqqara necropolis. In 1850, Mariette found the head of one sphinx sticking out of the shifting desert dunes, cleared the sand and followed the boulevard to the site. After using explosives to
Saqqara inspired the monumental enclosure wall around the Step Pyramid complex. Djoser's funerary complex, built by the royal architect Imhotep, further comprises a large number of dummy buildings and a secondary mastaba (the so-called 'Southern Tomb'). French architect and Egyptologist Jean-Philippe Lauer spent the greater part of his life excavating and restoring Djoser's funerary complex. Nearly all Fourth Dynasty kings chose a different location for their pyramids. During the second half of the Old Kingdom, under the Fifth and Sixth Dynasties, Saqqara was again the royal burial ground. The Fifth and Sixth Dynasty pyramids are not built wholly of massive stone