In the centre of the old city, because the museums were closed on Monday, there was no time to see vasa and the palace on Tuesday. The Nobel Museum was admitted free Tuesday evening. While waiting at the entrance, I saw the Royal Swedish family coming to the Royal Swedish Academy's Christmas dinner in the side lane. It was very lucky. The theory of winning the Nobel Prize in museums is not clear to ordinary people if they are not science and engineering people. Finally, I went to the restaurant next to me and tasted the ice cream for Nobel dinner.