Ancient Egyptian civilization is so grand that our minds sometimes have difficulty adjusting to it. Consider time. Ancient Egyptian civilization lasted 3,000 years, longer than any other on the planet. When the young pharaoh Tutankhamen ruled Egypt, the pyramids of Giza had already been standing well over 1,000 years. When Cleopatra came to power, Tutankhamen had been in his tomb more than 1,000 years.