Gellért Thermal Bath
(Listing updated 3 months ago.)
The fountains are over 200 years old. The bath itself was built in 1918 in art nouveau style built into the 1918 splendor of the Gellért Hotel - all columns, skylights, tile, and marble, and is probably the most famous among all baths in Budapest for its architectural beauty. It is also the priciest of its kind. Gay men go to the thermal baths mainly, but the pool and the outside area during the summer are also cruisy. Massage and other medical services are available.
(This listing was originally from http://graygay.com/.)