Şengül Bath located in Kütahya Börekçiler Neighborhood has been repaired at different times and some parts have been demolished. For this reason, it does not comply with any of the usual order in Ottoman bath architecture. The construction date has also not been finalized. Evliya Çelebi mentioned the name of this bath when he was talking about the Kütahya baths in 1671-1672. Apart from Evliya Çelebi, no document or source related to the construction of the bath has been found. In this regard, this bath XVI. it is believed to have been made in the century.
The dressing part of the bath, which is made of cut stone and rubble stone and where bricks are used on the upper covers, is covered with two large pendant domes side by side. These are separated from each other by a wide arch. From the dressing room, a narrow door opening to the west leads to the warmth. The warmth is covered with a dome with pendentives and there are two bays with cradle vaults in the north-south direction. The temperature in the south of the tepidity has a square plan and is covered with a flattened dome carried by Turkish triangles. There are also small domed cells around the temperature.
Restoration projects and implementation have been carried out with the contributions of Kütahya Municipality. Today it is functioned as a Geological Museum.