Luzern, Switzerland. Absolutely stunning.

I will be there at the end of March and would love some suggestions! I'm planning on checking out most of the bigger touristy stuff (Lion Monument, bridges, old town etc) but definitely interested in hearing what you enjoyed!
Take a ride up to Mt. Pilatus on the cogwheel train & a cruise on the lake. There's a smart little cafe with self-cleaning toilets, very good coffee, and pastries, but I can't recall the name.

I agree. It is one of the most beautiful cities I've ever visited, and I have been to dozens.