I call a houseboat in Amsterdam home. Have you ever visited the city?
No, but it's a place I'd like to visit one day. 
As the capital of Netherlands, it has the most people -- but like many European cities, can still have a small town feel and charm.
I've been to a few cities in Europe, and they are a lot more cozy than most of the major US cities I've been to. 
Do you have a favorite spot? We adore Italy, and often visit the capital city, Rome.
I liked Berlin. We went to a lot of museums there... My S/O is a bit of a military history nut, and they have a lot of that!
Never visited Berlin! I know someone who ran the marathon there, though. And my S/O is also a history nut. I love the perspective of the impact history has on current society and culture.
As far as history, he knows more than anyone I've ever met, but I think at the end of the day he just likes seeing tanks and airplanes!
Ha! I understand that. Boys and their toys and things that go boom ;-) I think it's admirable how Germany seeks to remember history in a way as not to *repeat* it.
Yes. France does a good job of that too... a lot of the places where major battles in WW1 took place are preserved. It's so spooky... it looks like a moonscape covered in grass. All the holes are from bombs landing, and from where the trenches were.