Synagogue (defunct, 10 Szpitalna St.) - The first wooden synagogue was erected soon after the city's incorporation, i.e. In the third quarter of the 18th century., by virtue of a privilege issued by the owner of the estate, Wojciech Węgleński. It is likely that this building can be identified with the wooden synagogue, built on an elongated rectangular plan, located on St. Leczynska. Information about it and the wooden beit ha-midrash next to it can be found on plans of the settlement dating back to the 1880s. Both buildings burned down in 1886., but soon, at the expense of Siedliszcze residents, they were rebuilt.In 1897. The synagogue burned down again. In 1898. A brick synagogue with a sheet metal roof was erected on the same site. It was built on a plan similar to the previous one, enlarged by an annex at the gable wall, housing a staircase and a room intended as a cheder. During construction, the location of the synagogue was changed, placing it parallel to the street.Along with other community facilities, it was destroyed during World War I. In March 1923. A project was prepared to rebuild the building according to the previous layout.To begin construction, the local community had to take out a loan from the Bank Gospodarstwa Krajowego in Warsaw. In 1927. The synagogue was put into use.The eastern part housed the men's hall with a centrally located bimah, and the eastern wall contained a richly decorated aron ha- kodesh. In the ground floor of the two-story western part there were three chambers and a staircase, leading to the grandmother's house, located on the first floor.The exterior elevations were dissected with lisens, on which rested a profiled cornice. The synagogue and beit ha-midrash were completely destroyed by the Germans during World War II. To this day, no material trace of them remains, and where they stood there are now stores.