21/23 Klasyków Street. The Nativity of the Most Blessed Virgin Mary church. During the occupation and the Warsaw Uprising it was the area of operation of the VII Home Army District "Obroża" of the I Region "Marianowo-Brzozów".
Inside the old church there is a plaque dedicated to the soldiers of both 5th and 6th companies of the Home Army 2 Battalion, who came through the Vistula river during the Uprising, then reached Kampinos and on September 21, 1944 lost their lives in the battle of a village called Polesie Nowe.
Next to the new church wall one can see the memorial site dedicated to the Polish people fighting in the WW II, including the plaque commemorating the Warsaw Uprising 1944.