The Great Pyramid of Giza is the largest of the Egyptian pyramids and the most famous landmark of the Giza pyramid complex in Giza, Egypt. It is the oldest of the Seven Wonders of the Ancient World, and the only wonder that has remained largely intact. The Great Pyramid served as the tomb of Egyptian Pharaoh Khufu ("Cheops"), who ruled during the Fourth Dynasty of the Old Kingdom. It was built c. 2600 BC over a period of about 26 years.