The Siennicki Deanery is part of the Warsaw-Praga Diocese, which belongs to the Warsaw Metropolitan Archdiocese. The surrounding parishes, headquartered at the Parish of St. Stanislaus the Bishop and Martyr in Siennica, are characterized by architectural and historical diversity. Siennica, as the central location of the deanery, has several chapels, including those in the Senior Home and in the Convent of the Capuchin Sisters, reflecting the activity of the local community and its involvement in religious and social life. Parishes such as Our Lady of Perpetual Help in Guzew or St. Adalbert's in Jeruzal showcase diverse architectural styles, ranging from modest traditional structures to more impressive buildings. Also noteworthy are the sacred sites, such as the cemetery chapel on Akacjowa Street in Siennica, which plays a significant role in local tradition and history. From a cultural perspective, the Siennicki Deanery promotes religious activity by organizing various cultural and religious events, strengthening the identity of local communities. Each parish has its own pastor who nurtures the spiritual growth of the community, including figures such as Fr. Przemysław Bieniecki in Guzew and Fr. Andrzej Sulej in Kiczki. Local traditions and customs are visible in each parish, making them interesting places for both residents and tourists. It is also worth noting that the Siennicki Deanery, with its rich religious history, plays an important role in transmitting moral and cultural values, as well as in integrating the local community around shared goals and traditions.