Last weekend we took the train down to Portland, walked miles and miles, and spent a day loving the museums.
The Oregon Museum of Science and Industry is big fun. We were in there for 3 1/2 hours and still had to pull the kids away when it was lunch time. They could have spent all day exploring and doing the puzzles that are set up all over the museum. I was really impressed with the "labs", areas where you could actually have a kid or a group of kids work through some hands on experiments - not just push buttons and watch stimulations but actually DO some science.
The Portland Art Museum was a surprisingly big hit with the kids. My daughter especially was enraptured and inspired by all the art she saw.
I had a pad of lined paper in my purse, which she asked to draw on, but it would have been great if we had thought to bring her sketch book with us. Next time.