What is the significance of the Great Pyramid of Giza in ancient Egypt?

The Great Pyramid of Giza was a monumental tomb built for the Pharaoh Khufu around 2500 BC. It is significant in ancient Egypt as it represents the power and wealth of the pharaohs, their belief in the afterlife, and their advanced engineering and architectural skills. The pyramid also served as a symbol of unity and stability for the Egyptian people.