I have been to Europe and some of the WW2 battlefields. I have been to Bastogne and the Ardennes. There are a lot of small Belgian towns that still have War relics in them. I went to visit my friend who is from Luxembourg and he took me to some of these places. We stopped at a little town called Hoffalize ( I believe this was the town) and they had a King Tiger tank on display in the town square. Try to hit the small towns as well as they have some great private (small) museums. Also the Battle of the Bulge Museum in Bastogne is great. Also, if you can make it, go to the AMerican Cemetary in Luxembourg City, this is where Patton is buried. ALso, there is a German war cemetary also in Luxembourg City. My best advice would be to check out the small towns as I said.
Bill