Hello. I have confirmed flights to Vienna in July, but I am not sure how many days to spend there. I am not real big on art museums or opera and classical music and I am aware Vienna has many of these places. My interests are more of the history, churches, old buildings, etc. I know that Vienna is a beautiful city, but I would like to use my time wisely. I have purchased Rick Steves' guidebook for Vienna, but I would like to get some opinions from people who are from the area. My question is: would 4 days be enough to see the major attractions in Vienna (minus the art and music attractions)? I would probably visit a couple of the major art and music museums, but no more than that. Thank you for any advice you may provide!