Using a ladle, the performers throw arcs of burning molten metal through the air that burst into glowing sparks onto the cold, hard wall. The ladle is made of wood, soaked for three days, but it still smoulders so the performers have to throw the metal as quickly as possible. By experimenting with metals, the performers have managed to create a multi-colored array of "flowers", improving on the original red. File Photo by Mark Ralston / Agence France-Presse