Jungfrau is the most famous one in the Alps. Although there is no high altitude of Mont Blanc, it still attracts many people and some people only to the observation deck building at the end of the train because of the indoors. The relationship will not be too cold and there are also small attractions such as the ice palace to visit. If winter comes, the wind on the mountain is very strong. Open the door basically feels like it has to be blown away and nothing can be seen.