Undoubtedly, this one of the most beautiful squares in the world on the Voltava hilly hills, with a history of more than a thousand years, is the top priority of all Prague's attractions. From the blue dawn to the night, the square is full of travelers from all over the world, and you can even meet many new people shooting wedding dresses. Walking on the stone road polished by the years, two young people pulled up their violins in the square. In the melodious sound of the piano, the sky was blue to the extreme, like a huge gentle velvet, spread out. Up the tower, you will be surprised to find that this is the fairy tale kingdom of Andersen's story, set off by the blue cold night, every window revealing warm yellow lights is like telling the story you long to understand. Believe me, you, standing in the bell tower looking at all this, even breathing carefully, afraid of a big movement from this dream wake up.