There are three floors in total, and you will find people here when you play in Italy. We think that the 1st floor is marked as 0. It is reasonable to think about it. Most of the museum's things are a lot of instruments on the second and third floors. There are many natural astronomical and geographical instruments. There are also very famous several physics principles to build, used to this can really see, I bought 10 euros of tickets, really worth it, walked more than two hours, there are not too many things inside, there are many small details of small things, if -- each thought, it is estimated that a day can not be seen. Another reason may be that I have visited too many exhibitions about painting and sculpture art. Suddenly there is such an exhibition. It is really very special and novel. For the students who have already looked at the numbness, it is quite refreshing. Hahaha I wanted to search for Galileo Bo before I came yesterday. I didn't find too much of the guide of the museum. I will write it to everyone today.