In 1937, a single exhibition in Munich became the most visited art show in history — but the Nazis designed it as a public humiliation, a courtroom where 'degenerate' art would be convicted by the crowd. What actually happened was far stranger, far more embarrassing for the regime, and far more revealing about who really gets to decide what art means. This week, we get into the Entartete Kunst exhibition, the artists they tried to destroy, and why official attempts to kill art almost always make it immortal.