Mülheim
Fascinating world of optics
Be enchanted by the magic of the world's largest walk-in camera obscura, where you will be offered breathtaking real-time panoramas from Oberhausen to Düsseldorf. Mounted directly under the roof of a historic water tower, a fascinating perspective on the surroundings reveals itself to you. For children, there are exciting insights into the beginnings of cinematography and the history of optical illusions.