Marrakech city has the largest traditional market (souk) in Morocco and also has one of the busiest squares in Africa and the world, Djemaa el Fna. The square bustles with acrobats, story-tellers, water sellers, dancers, and musicians by day; By night, the square turns into food stalls, becoming a huge open-air restaurant with busy life. Like many North African and Middle Eastern cities, Marrakech comprises both an old fortified city (the médina) and an adjacent modern city (called Gueliz). It is served by Ménara International Airport (RAK is the code for the airport) and a rail link to Casablanca and the north.