It's really old and has a lot of history post ancient Egypt a fair bit of it abusive, e.g. it looks like the sphinx's nose was chiselled off (not shot off with a cannon by Napoleon in the myth). People used to climb all over the great pyramid, etc. It's cool to go to the more recently discovered places like the valley of the queens to see the paint and hieroglyphics. All the stuff near Cairo has had more human interaction.