Like many things in this world, the most popular and famous thing is not the best. In Egypt, the Pyramids at Giza are the wonder to behold, but the visit itself is disappointing. While the actual structures are breathtaking, the presentation is underwhelming at best, and obnoxious at worst ("No, I don't want to ride your camel, thank you," is something you have to say way too many times, like every twenty seconds or so).
Just down the road, though, is Saqqara, the main necropolis of the ancient capital of Memphis, and home to several dozen pyramids, including Djoser's step pyramid, the very first pyramid ever built. There are almost no tourists and very few people trying to sell you things. The guides are friendly and knowledgeable and professional, and there is even a nice little museum that includes, because this is the cradle of civilization, the oldest known ceiling in the world. Go figure.
In other words, Saqqara is number two, so it tries harder. There is so much to see--and so few people determined to annoy you--that we were able to explore to our heart's content, and there was an entire section of the site that we didn't even get to. So I guess we'll have to go back someday.
I don't have much information about what we saw, but I'll try to explain it all a little.