Rudas is Budapest's most atmospheric thermal bath, its Ottoman-era octagonal pool dating to 1566 making it one of the oldest functioning baths in Europe. The original Turkish pool sits beneath a stunning 16th-century domed ceiling, its coloured glass oculi casting shafts of light onto the steaming emerald water. The bath was extensively renovated in 2005, adding a spectacular rooftop wellness pool with panoramic views over the Danube and the Buda Castle. Rudas offers thermal pools at varying temperatures (16–42°C), saunas, steam rooms, and an extensive massage menu. On Friday and Saturday nights the rooftop pool transforms into a vibey after-dark experience. The medicinal waters are recommended for locomotor and degenerative joint conditions.