A visit to Cairo's Egyptian Museum helps bring the country's many ancient sights to life. Along with the Grand Egyptian Museum at Giza, this museum shows off the best collection of ancient Egyptian art anywhere. This ancient art is so well-preserved because most of it was hidden away for 4,000 years, dark and dry, in tombs. A remarkable thing about ancient Egyptian art and society as a whole was its stability. Akhenaten replaced all the gods of the Egyptian pantheon with one all-powerful being, the sun god, whom he called "Aten."