Király thermal bath was the first to be built in Hungary under the Ottoman rule, in the second half of the 16th century. It still retains many of the key architectural elements of a Turkish bath, exemplified by its Turkish dome and octagonal pool.
The thermal water used at the Király bath contains sodium, calcium, magnesium bicarbonate and sulphate chloride, as well as a significant amount of fluoride ion. The temperature of water in the four different pools ranges between 26 and 40 degrees Celsius (78-104 F).
The Király Bath gained its present form after its reconstruction in 1796, when the neoclassical wings were added. From the outside you can see the octagonal dome, which houses the original Turkish bath. Light beams crossing the hexagonal openings create a colourful haze by breaking on the water drops.