The imposing white Hollandse Schouwburg was originally a theater, but in World War II hundreds of Dutch Jewish families were forcibly detained here before deportation to the concentration camps of Poland. The former theater is now the official memorial to the Nazi Holocaust in Amsterdam, with a deeply moving documentary highlighting the persecution of the Jews through a series harrowing interviews with victims. The small museum on the upper floor is mainly notable for its pictures of the ingenious hiding places used to conceal Jewish people from the Nazis. However, it is the monument out in the rear courtyard that grabs attention—a simple cast column scattered with flowers.