The civilization of Ancient Egypt extended from the fourth millennium BC to the conquest of Alexander. The Egyptians in their tombs recreated life for the dead in a naturalistic way, often against the background of the landscape in which they lived. They also left revealing portraits ranging from the civil servants of the kings to the kings and queens themselves who built the pyramids at Giza and Saqqara; the tombs at Thebes, including the treasure-filled burial-place of Tut-ankh-amon; the temples of Luxor and Karnak and the palaces of Akhenaten at Tell el Amarna and of Amenhotep III at Thebes.