When he was 24, Anselm Kiefer found his father’s old Wehrmacht uniform in the attic. This hidden, shameful family history was almost lost to time, almost forgotten, but Kiefer couldn’t let that happen. So he put on the overcoat and “Sieg Heil”-ed all across Europe, taking pictures along the way. This early art project in the late-1960s was the German artist attempting to embody and confront the past. A picture of him doing the banned salute – forbidden in Germany under the long process of denazification – is at the heart of this show of his early works. He stands,...