Hey all, I am an American who will be going to europe early this year for a week. I have a place to stay for cheap near Cambridge but I plan to just use that as sort of a homebase and will be traveling most other times.

What are some things I need to know? What are some places to go see? I've been kind of forced to do the planning and haven't put much thought into it as of yet.

I was thinking budapest + prague, florence+naples, amsterdam+brussels but I dont know