The Great Pyramid of Giza was built as a tomb for the Fourth Dynasty Pharaoh Khufu. It is the oldest and largest of the three pyramids in the Giza pyramid complex and remained the tallest man-made structure in the world for over 3,800 years. Built using an estimated 2.3 million stone blocks, its construction remains a subject of intense archaeological study and debate regarding the methods used to transport and lift the massive stones. It is the only one of the 'Seven Wonders of the Ancient World' to remain largely intact. The pyramid serves as a testament to the organizational capability, mathematical precision, and religious devotion of Ancient Egypt, symbolizing the Pharaoh's status as a living god and his journey into the afterlife.