The second pyramid, built by Khufu's son Khafre around 2530 BC, looks taller than his father's because it sits on higher ground and retains a cap of its original polished white casing stones at the summit. This is the only pyramid at Giza that gives you any sense of what all three once looked like — fully clad in gleaming limestone, they would have been visible from the Sinai on a clear day.
The interior of Khafre's pyramid has two descending passages (built at different stages of construction) that converge at the burial chamber. It is open to visitors and tends to be less crowded than Khufu's interior. The valley temple at the base of the plateau is worth the short walk: its granite halls are some of the finest surviving Old Kingdom architecture, and the causeway connecting it to the pyramid is mostly intact.