My husband and I will be visiting Hamburg in July 2013 for a convention. We would like to extend our trip for two or three additonal days to visit other areas nearby. We are currently looking into tours which involve air travel and are quite expensive.
I have heard good things about the train travel in Germany. Can anyone offer options for touring nearby cities and sights without flying? I am most interested in seeing scenic and historic areas. I would love to visit a real castle!