Tuzla is the only city in Europe with salt lakes and the only city in the world with salt lakes, swimming and bathing area and beaches in the downtown. The Pannonian lakes complexs consists of three lakes of various depth and size and salt waterfalls. Within the Pannonian Lakes Complex there is an archaeological park – Neolithic Settlement of Pile Dwellings and a geological museum collection “Pannonica”, children’s amusement park, sports fields, caffes and restaurants and other cultural and entertaining facilities. During its fifteen-year egsistence the Pannonica Complexs has been visted by 3.7 million tourists.