Düsseldorf is known for its many bars in the downtown (Altstadt) area. In fact, many people refer to the Altstadt as the "longest bar in the world" ("Längste Theke der Welt"). The most common drink is "Altbier" or simply "Alt." This dark beer, served in small glasses, is available at practically any restaurant in the city. Altbier is only brewed in breweries around Düsseldorf. In the Altstadt you can enjoy Schlüssel, Uerige, Schumacher, and Füchschen beers, at traditional brewery restaurants. The waiters at these traditional restaurants are called "Koebes."