The Collegiate Church of the Assumption of the Blessed Virgin Mary in Jasło is a Gothic temple from the 15th century, likely built between 1443 and 1448, and consecrated in 1595. The architecture of the collegiate church is characterized by a single-nave layout, a slender body, and a polygonal apse. The building is located in the city center, surrounded by a metal fence and a brick wall, with a bell tower to the west. Despite numerous fires and destruction, the church has survived to this day, retaining many original elements, such as the rib vault in the apse and heraldic corbels. The history of the parish dates back to before 1325, and before the current church, there was a wooden building that was destroyed. The collegiate church had several founders, including Stanisław Cielątka. In the 19th century, expansion plans were made but never realized, and in the 20th century, the temple was destroyed by German occupiers. After the war, reconstruction began, and in 2011, the church was granted the title of collegiate church. The interior furnishings also underwent numerous changes; the original Baroque altars were destroyed, and new ones were acquired in the 20th century. In 2001, layers of polychrome were discovered, including a Gothic painting depicting St. Jerome. The collegiate church is an important cultural monument of the region, combining history, architecture, and art.