Mineral-rich hot springs from deep within Gellert Hill feed Gellert Spa, located on the right bank of the Danube, where an amazing bath culture has developed in Budapest since Turkish times. Constructed in 1918 and decorated with numerous Art Nouveau furnishings, Gellert Spa is famous for its main hall with glass roof, elaborate mosaic walls and detailed stained-glass windows. Choose from 13 indoor and outdoor pools filled with water from thermal springs. A natural temperature of 170 degrees F (77 Celsius), the thermal water is cooled down to different temperatures at the spa and contains minerals like calcium and magnesium, which are said to be good for your joints! You can also make use of steam chambers, saunas and cold plunge, or dip into the Roman-style swimming pool or outdoor adventure and wave pool.