The historical–architectural monument in the square of Dada–Gorgud, in the intersecting of the Heydar Aliyev avenue and the Tabriz street, Nakhchivan city. The building built in the middle of the XVIII century of the Eastern architectural style consists of the entrance, service hall, swimming-pool, pond and furnace house. The total area is 526 m2. The building was built of the bake bricks of 20x20x5 cm in size. The entrance to the bath-house is from the joined span portal. The exterior of the portal was decorated with glazes. It is possible to enter the bath–house from the wide corridor but to the cloak-room from the narrow passage. The cloak room is octagonial. Six deep recesses were arranged along the walls of the hall. The bathing hall has got two passages. One of the passages opens to the other room. A pool was built in the center of the hall of 2x2 m size. The ceiling of the hall of 108 m2 was covered with the spherical dome. The bath-house was lit with small windows arranged in the walls of the halls and with the smoke-ducts on the dome. The pond of the bath-house was placed in the West of the building joined to the bathing hall. From the hole opened in the pond was used to take water. The water supply was by means of kehriz. The furnace under the pond played a great role in heating the bath house. The heat to the rooms was delivered by means of the underground canals. The bath-house is connected with the name of Ismailkhan, one of the khans of Nakhchivan. At present it is in good order after a capital repair and restoration. It is defended by State as a historical-architectural monument.