Also known as "Turkish bath" or "Oriental bath". Traditional hammams are traditionally segregated by gender: either separate rooms or times of use for women and men are different. In hotel complexes, it can usually be visited by men and women. On the walls are sinks with hot and cold water, with which you regularly pour over. In the middle of the room is the umbilical (Göbek Tasi). Good information is Wikipedia. A very interesting report on the hammam culture of Istanbul, historical and current, can be found on Tagesschau.de.