I checked and some car rentals aren't so crazy. Now I'm wondering about going to Bastogne. I'm very interested in the Battle of the Bulge Museum. If I drive to Bastogne from Brussels, is it worth it to continue along to see Luxembourg? It would be interesting to say "I was in Luxembourg", but is there anything really interesting there that I'm not seeing in Brussels/Ghent/Antwerp? I'd likely adjust my dates so that we were in Ghent after the festival.