Itinerary: Switzerland/Northern Italy
We flew into Zurich.
Took Train to Lucerne. Spent 1 night. Add on a 2nd if you have time!
From Lucerne took 3 trains to Wengen. The larger town is Interlaken, but Wengen is the perfect location, a middle-size town, plenty of restaurants and hotels and access to Trains and Trams - close to Jungfrau and Shilthorn.
We went back to Lucerne and then headed down to Lake Como (6 trains and 8 hours later). Breathtaking beauty! You can skip the "Scenic" Train - you get the same views!
Lake Como for 2 days - good!
Then a less than 1 hours train to Milan. 2 days is plenty - unless you love to shop!