The present building of the baths and hotel called St. Gellért Medical Bath and Hotel was erected in 1918 and opened to the pablic on 26th September of that year. The wave pool was built in 1927, aqnd the 'champagne' bubble pool was constructed in 1934. The spa, well-known throughout the world, is the most popular spa among foreign visitors. Nearly all medical services of a spa are avaible, with rheumatology, comprehensive physiotherapy unit(day hospital), physiotherapy sub-unit and inhaslatorium.Besides the 'champagne' and wave pools, the sunbathing terraces for women only and for mixed naturists are popular. These are open from April to late September. Hotel guests regulary use the services of the spa.

The baths is believed to have been built in the 1550s and rebuilt by Pasha Sokol Mustafa in 1566. At that time it was called 'Green Columned Baths'. The centre of the present Rudas Baths, the Turkish bath, was formed during the Ottoman occupation. It has an octagonal pool under a 10m-span dome supported by eight collumns and surrounded by a barrel-vaulted corridor. It exists today almost in its original form and is the core of the present baths. The swimming pool dates from 1896 and was the second indoor in Budapest.The thermal baths is popular with all ages, though is for men only. The swimming pool, which operates as a medicinal poll, is primarily visited by the elderly. However, children's groups also visit in large numbers. Several generations have learnt to swim here. There are also comprehensive physiotherapy services for outpatients avaible second floor of the Rudas.

The history of the baths dates back to Ottoman rule in Buda. The Pasha of Buda, Arslan, in assumed to have started building the baths in 1565 so that, should there be a siege, there would be a baths in a protected area withih the town walls. The present name was given by the önig family who owned the building from 1796. The impressive baths is a rare survival of Turkish times in Hungary and today as a listed building it represents an early Ottoman baths palaca in it original granduer.

The present baths was built in 1894 and until the Szechenyi Baths was ready this was the biggest and most popular spa in Budapest. Besides the thermal baths the swimming pool it is also a favourite meeting place for writers and artists. The 1800sq.m area around the spa is a popular place for relaxation with its century old trees. A drinking hall here offers curative waters. On the sidewall of the spa plates of gratiude hang showing how many people from different countries of the world have visited the baths and recovered here. The comprehensive physiotherapy unit (day hospital) deserves special emphasis from amog all the services of the spa.