Hi All

My wife and I are planning our maiden trip to Europe. So far, we think we have the broad itinerary covered. It would be great if you guys can pitch in give some suggestions for

a) places nearby that are maybe better/cheaper/ more worthwile to visit

b) some “off the normal tourist path” things / places

c) we are doing mostly rail travel. Any other suggestions would be most welcome here

d) and finally, some “must-do” things

Well, this is what we have for now:

Reach Frankfurt, take immediate train to Cologne
Stay in Cologne for 4 days. Take day trips to Dusseldorf
Leave for Paris via the Thalys train network
Stay in Paris for 5 days.
Take train to Berne. Take train again to Interlaken.
Use Interlaken as a base for 5 days. Travel around (no idea where !!!)
Take train to Milan. Stay 1 day. Shop.
Take train to Florence. Stay 3 days and cover the cirque terre (is this a good place for that?)
Take train to Rome. stay 3 days.
Fly back to Chicago.

Your inputs will me much appreciated.