I know somwhere you must go in Lucerne
I don't know if you know of this place, but it's the Swiss transport museum, or Verkershaus. I have relatives in Switzerland and they took me there in 1996. There is various stuff there but the highlight is the preserved Swissair Convair 990A Coronado HB-ICC.
It's immaculately preserved in full Swissair colours and with it's original interior which you can walk through, though you can't sit in the seats.
If you've got the time and are in the area it may be worth a look at this unusual aircraft. I found it really interesting although I don't recall anything else of major interest and have no idea how much it cost because I didn't pay!
It's really near the side of Lake Lucerne as I recall and we took a short boat ride from the town centre near the bridge.
Hope this is of interest to you.
Have a good flight, but for me a trip to Switzerland isn't complete without Swissair but I have the advantage of a 3x Daily Swissair flight 40 minutes from my doorstep!