Share 'Midwest Honeymoon Ideas'

Does anyone in the Midwest have any ideas for good local honeymoon getaways? The more that I think about it, San Fran/Napa Valley might be too expensive. We spent about $2K there for a long weekend last year. If we're going to drop $5K for a week, we might as well go away for real. I'm trying to think of some driveable options for getaways, but the end of October is really cutting it close for ou…