Bathing establishment in Bytom, indoor bathing establishment in Bytom, Poland

The bathing establishment in Bytom is a modernist indoor swimming pool complex built in 1934, with a reinforced-concrete structure and clinker-brick walls. Its three-storey pool hall, lit on three sides, holds a 33.3 by 12.5 metre pool, and a 22.6-metre tower housed boilers and water tanks.

The present building replaced the city bathhouse of 1868 in the historic municipal park; the design competition was decided in 1928 and construction began in May 1929. Work stalled during the Great Depression and the indoor bathing establishment opened on 15 April 1934. From 2009 to 2012 a renovation replaced the pool basin with a stainless-steel one set on hydraulic actuators because of mining damage, and it reopened on 1 June 2012.

The building's German name was Hallenschwimmbad in Beuthen, and its brine treatments drew on water pumped from about 700 metres down the nearby "Centrum" coal mine. Therapies included iodine-boron and carbonic-acid baths for rheumatism, heart and respiratory complaints. Brine from the mine was probably replaced in the 1960s by salt solution from Ciechocinek.

The pool is indoors, inside the 1934 functionalist building, so it can be used year-round rather than only in summer. The stainless-steel basin installed in 2012 is 2 metres deep and rests on hydraulic actuators because of mining damage. A lift for disabled visitors and a paddling pool with water jets were added in the same renovation. The building stands by the historic city park, on the site of the 1868 municipal bath.

The pool basin installed in the 2009–2012 renovation is stainless steel and only 2 metres deep, resting on dozens of hydraulic actuators because of mining damage beneath the building. The original basin was 3.5 metres deep.