Gellért Medicinal Bath and Hotel opened in 1918 is one of the most famous thermal baths in the city. Its central location makes it very attractive to tourists. There are separate indoor thermal pools for men and women, saunas and few outdoor pools, one of them with artificial waves. The bath is also worth visiting because of its ornate mosaics and impressive retractable roof above one of the pools.
(Photographs are courtesy of Swann Production.)
Link to website