[GarySL]

^that's crazy:
Since 1946, the Bregenz Festival ‘Opera on the Lake’ in Austria has been home to some of the most incredible outdoor stages ever built. Lake Constance is often used during the festival as an extension of the stage, which this year was transformed into a 24 metre-high figure of Jean-Paul Marat, inspired by the depiction of his death in the 1793 painting by Jacques-Louis David. The stage design also includes an open book which served as the doorway from which members of the cast emerged, and a large gold mirror.