The urban layout with two markets has been preserved.
Parish Church of. st. st. pm, Modesta and Krescencji. The current one was erected at the turn of the 15th and 16th centuries. probably from the Sierpski family foundation and was rebuilt in the 18th century. i 1844 r. Gothic-baroque, made of brick with the use of fieldstones and millstones. Partly plastered (outside the tower and the northern elevation) and buttressed (nave and presbytery). One-nave with a narrower presbytery and a massive four-storey tower on a square plan. From the south. chapel from the middle of. XVI w., rebuilt in the 18th century. Outside the chapel there is a baroque gable, in a field whose coat of arms is Truth – Sierpsich. Below the window, on the same wall of the chapel, there is a sandstone board with 1569 r. with a Latin inscription on the restoration and decoration of the chapel. In the presbytery of the main baroque altar of the 18th century. sculptures of St.. st. Stanisław and Wojciech, painting of Our Lady of Częstochowa from the 19th century. (in the main field) and the image of the church's patrons from the 18th century. (in the finial). Baroque side altars in the nave, from the 18th century. and the Rococo organ prospectus from 2 half. 18th century.
Church and Monastery of the Benedictine Sisters. Parish Church. pw. Assumption of the Blessed Virgin Mary, probably erected in 1483-1513, Gothic, rebuilt. Made of bricks, single-nave, with a narrower presbytery. At the presbytery from the south. a plastered chapel built on a square plan, and from the north. sacristy and porch. Inside, in the main neo-Gothic altar, there is a Gothic sculpture of the Virgin Mary with the Child, high 120 cm, probably made in the years 1360-80, considered miraculous, crowned with papal diadems 21 of August 1983 r. by Cardinal Franciszek Macharski. On the veil there is an image of the Assumption of the Blessed Virgin Mary made by St. 1871 r. by Jan Strzałecki. At the top of the main altar, there is a painting of St.. st. Scholastica and Benedict from the 18th century. In the southern chapel. a late-renaissance tombstone of Katarzyna Goślic-ka (d. 1621), made of brown marble, with a bas-relief figure of the deceased. In the vicinity of the church there is a baroque belfry from the end of the 16th century., brick and plastered. Baroque monastery, brick and plastered, two-story, built in 1703 r. In years 1886-1945 it housed a prison. On the monastery wall from ul. The dedicated plaque for the Polish Army 400 Poles murdered by the Nazis in 1942 r. In the monastery garden there is a tomb of teachers and students from Bydgoszcz murdered in 1942 r. Brick belfry with 1897 r. Filial Church. pw. Holy Spirit (pl. Wolski). Built in the years 1518-19 from the foundation of King Sigismund the Old as a hospital. It has been rebuilt many times. Gothic-baroque, brick, single-nave with an undivided presbytery. Inside, there are fragments of late gothic polychromy made in the years 1519-29 depicting, among others: "The Last Supper", "Resurrection", "The final judgment", "Crucifixion" and the figures of saints. In the main altar there is a late Gothic sculpture of "God the Father with Christ Crucified" (so-called. The Throne of Grace) z XV/XVI w.
Post-Evangelical Church, ob. Roman Catholic parish. pw. st. Stanisław Kostka (parish of st. Maximilian Kolbe), built in the years 1911-13 wg proj. Bolesław Zienkiewicz, brick. Former Orthodox Church, brick, built in 2 half. XIX w. wg proj. Józef Górski, rebuilt in the 1920s, currently the seat of the court.
Town hall (pl. Wyszyński 1) erected in 1 half. XIX w., classicist, brick, plastered and rusticated, storey, built on a rectangular plan. From 1921 r. is the seat of a regional museum with a collection of figural sculptures by artists from the Sierpc region.