The Pyramids and the Sphinx (Giza). Cairo's iconic monuments, located on the western fringe of the city, are a mind-bending 4,500 years old. No matter how familiar you think they'll be, seeing these gigantic structures up close is simply breathtaking. Come early in the morning (8am), to avoid the crowds and heat – or, even better, in late afternoon when the desert sunset is a sight to behold.