Watch Online HD on HDtoday. In 1914, the Czech architect Jan Letzel designed in the Japanese city of Hiroshima Center for the World Expo, which has turned into ruins after the atomic bombing in August 1945. “Atomic Dome” – all that remains of the destroyed palace of the exhibition – has become part of the Hiroshima memorial. In 2007, French sculptor, painter and film director Jean-Gabriel Périot assembled this cinematic collage from hundreds of multi-format, color and black and white photographs of different years’ of “Genbaku Dome”.