Welcome to Morocco. Depending on your flight, if you arrive early and have time to spare, forgo Casablanca's medina (old town)—much younger than Fes and Marrakech's—and instead opt to visit the Hobous, the city's "New Medina." Established in the 1930s by the French, it offers charming streets and art deco architecture. Pop into some artisan shops to browse local crafts, including olives, textiles, and spices. As an idealized version of a traditional medina, you'll appreciate the clean streets, attractive Mauresque buildings and arcades, neat rows of shop stalls, and even a small park.
Later, follow the Boulevard de la Corniche, a scenic promenade along the Atlantic where you can pop into a café or restaurant. Visit El Hank Lighthouse and enjoy views of the Hassan II Mosque from afar before carrying on to the mosque for a guided tour. Casablanca's premier attraction, the mosque, is the largest in Morocco, with an impressive 689-foot (210-m) tall minaret. Its large complex includes a museum, hammam, Koranic school, library, and a prayer room supported by 78 granite and marble pillars. After your tour, Ingrid Bergman and Humphrey Bogart fans might like to pop into Rick's Café for a bite.