Gellért Thermal Baths and Swimming Pool, also called Gellért fürdő or Gellért Baths, is a bath complex in Budapest, Hungary, built between 1912 and 1918 in the (Secession) Art Nouveau style. It was damaged during World War II, but then rebuilt. References to healing waters in this location are found from as early as the 13th century. A hospital was located on this site during the Middle Ages. During the reign of the Ottoman Empire, baths were also built on this particular site.
The Gellért Baths complex includes thermal baths, which are small pools containing water from Gellért hill’s mineral hot springs. The water contains calcium, magnesium, hydrocarbonate, alkalis, chloride, sulfate and fluoride. Medical indications of the water includes degenerative joint illnesses, spine problems, chronic and sub-acute joint inflammations, vertebral disk problems, neuralgia, vasoconstriction and circulatory disturbances; inhalation problems for the treatment of asthma and chronic bronchitis problems (…wiki)