Prague at night is like a city of elves. Old-fashioned carriages carry curious tourists through the square. Horseshoes clash against the flagstone road and make a crisp noise. The Castle attic flickered brightly and dimly as if the princess in the story would appear in the window at any time; the noisy music in the pub and the clashing sound of the crisp glass made people feel warm and cordial. At this point, as if in the Middle Ages, or a fairy tale world, you will instinctively forget the existence of time, fell into the tunnel of time and space, lost in Prague Square.