I've been around all of those places! Mimoyecques, La Coupole, Le Bockhaus, Todt battery, Lindemann battery… The market garden bridges, D-day landing beaches, The dambusters lakes, most of the atlantic wall, the Rheine, The bridge at Remagen, The Ardennes, all the submarine pens on the West coast, Oradour-Sur-Glane, some of the marginot and seigfried lines and a few concentration camps along the way.
I love all that stuff, You'll have a great time.. if you like that sort of thing!