The Pyramids of Giza are located just outside of the city of Cairo, making them one of the most accessible ancient ruins to visit in Egypt. In fact, most tourists will simply hop in a taxi or an Uber and visit the Pyramids of Giza for a quick afternoon visit.
The entry tickets include the complete complex, and you can explore it without a guide. Camel rides are a popular option, though you should always agree on the price first. The complex allows easy exploration, although you will encounter many touts during the course of the journey. You should always remain firm and respectful.
Spending the night in Giza is a very good idea, since you can see the pyramids from the rooftop of any hotel, especially at sunset. Whatever the case, Giza is definitely a memorable experience if you want to see one of the world's largest archaeological sites.