Up-post said it all.
I am sure you know plenty info online as well, such as, but not limited to:
http://www.hohenschwangau.de/index.php?id=430

If you want additional places to visit, try check out online these:
Oberammergau, Ettal and Linderhof, not necessarily in that sequence. Linderhof would be worth at least 2 hours.
I have done all of them on a day-trip (driving, I mean). Beautiful destinations. You might wish to start the day early, since day light hours are limited.