Where are you staying and what exactly do you mean by artsy fartsy and cornball?
The National Gallery is a good start. Walking and exploring the 'artsy fartsiness' of the Byward Market is a relatively safe bet as there are lots of 'artsy' 'fartsy', 'cornball' friendly type of stores!
I'm just playing on your own words but the above mentioned activities are a 'safe bet'
Well by artsy fartsy I mean that she's an art historian, so she likes paintings sculptures etc stuff like that. She likes landmarky type of stuff.
We're staying over night in Ottawa, pretty much just for the day, early morning until evening.
We probably will be situated around the parliament area, mostly taking cabs or walking to places. Also, any good resturants in the area that are kind "romantic" anniverary type stuff. Like for example where would you take your girl friend to if you had to go out for a nice dinner etc.
She also likes to shop, big shopaholic. It's suppose to be our anniversary, but it's pretty much something more for her than it is for me. I don't mind going anywhere.