The Cathedral of St. Stanislaus Kostka is a prominent Roman Catholic church located in Chicago, Illinois. It serves as the mother church of the Polish National Catholic Church in the United States. The cathedral is named after St. Stanislaus Kostka, a Polish saint known for his piety and dedication to the Catholic faith. Constructed in the early 20th century, the cathedral features stunning architecture with a blend of Romanesque and Gothic styles. Its interior is adorned with beautiful stained glass windows and intricate artwork, reflecting the rich cultural heritage of the Polish community. The cathedral is a significant place of worship and community gathering.