Carl Heidenreich (1901-1965) was at the core of Germany’s avant-garde. His breakthrough came in 1933 when he received an offer for a solo exhibition of his brooding cityscapes at Galerie Nierendorf, but plans for the show came to a disastrous and abrupt halt with the election of Adolf Hitler. While Heidenreich’s paintings did not label him a "degenerate", his political activism did - he was denounced as a communist, his show forbidden, his studio ransacked, 200 pictures destroyed, and eventua (showing 500 of 1701 characters).