Klondike Gold Rush NHP, Seattle, Washington

And there is some interesting history in Seattle, this fairly new city but with some history of the Gold Rush days. The National Parks are a truly great resource.

Space Needle, Seattle, Washington

Yes they do have a restaurant, and very good views. But this looks very interesting with all the dry ice...

Boyhood Home of Ronald Reagan, Dixon, Illinois

If you can't make it to the California Reagan Library, you can always visit his Boyhood Home in Dixon, Illinois. There you can see parts of the house that they have replicas of in California.