What did the Egyptian Pharaos build the pyramids for?

Explanation

The Great Pyramid of Giza is the tomb of King Khufu and the largest of the pyramids. It was built around 2560 BC and is the oldest (and only) of the seven wonders still standing. It was constructed over a period of 20-30 years and the construction originally had a white, shiny surface. The pyramids were not built by slaves, but by deeply religious people wanting to honour their god.