The Archdiocese of Warsaw is a prominent Roman Catholic diocese located in Poland's capital city, Warsaw. Established in the 11th century, it serves as the spiritual center for Catholics in the region and is part of the larger Roman Catholic Church. The archdiocese is responsible for overseeing numerous parishes, schools, and charitable organizations. The archdiocese is led by an Archbishop, who plays a key role in guiding the local church community and representing it at national and international levels. The main cathedral, St. John's Cathedral, is a significant historical and architectural landmark, reflecting the rich religious heritage of the area.