Gateway to Egypt, Nile-side Cairo delivers an intoxicating and often intimidating blend of ancient, modern—and medieval. The Giza Pyramids and the Sphinx occupy pole position in most people’s list of things to do in Cairo, alongside the Egyptian Museum, Memphis, Saqqara, and Dahshur. Yet the medieval old town also holds UNESCO World Heritage status, and the Khan El-Khalili bazaar district, Cairo Citadel, and Christian Coptic Cairo entice travelers to go deeper. A dinner cruise or a felucca ride are lovely ways to discover the Nile, one of Earth’s great rivers.