2. Go directly into the transfer stone to the National Hall, where there is a place to punch in/watch (non-advanced)/sell things. Enter the transfer stone on the left, and you will reach the Xueta 1 floor.
3. There are transfer stones from 1 layer to10/15/20/25/30/35/40/45/50 layer.
4. Please refer to this website:/o/i/ditu/0139117076.shtml for the specific method of climbing stairs.
There is a very detailed map.