Built before 1141 (exact date is not known), it's one of the oldest churches in Poland that still stand, early roman style. And it's located in Siewierz, my mother's hometown, so I remember that building from the first visits on the cemetery in my memories. I didn't even know it's history until last years :)
All Saints day, time to visit our ancestors, pray and think a little about how all of us will perish someday. Also, visiting family is an important thing to do on that day.