On April 19, the Congress for Jewish Culture, along with Friends of the Bund, Jewish Labor Committee and Workers Circle, will once again observe the anniversary of the 1943 Warsaw Ghetto Uprising. It's always a moving event, with music and speeches and fellowship. The event is usually held at the stone in the Warsaw Ghetto Memorial Plaza (der shteyn), in Riverside Park.
...I've written about cinematic and documentary depictions of the Warsaw Ghetto here, and about the ghosts of the former Ghetto, here.