In the heart of a square, a man with a striped blue sweater slowly raised two long sticks and suddenly the air is filled with enormous bubbles. Children run in as if summoned by an ancient magician. They laugh, jump, stretch out their hands into the iridescent globes dancing in the light. The bubbles glide lightly among the buildings, reflect in the window panes and disappear in a breath. All around, the world seems to stop for an instant, leaving space only for the simple, contagious wonder of play.