Only saw the exterior spent 1 hour alone just seeing the exterior. Didnt have time to go inside for Tour. Very huge impressive. Never seen a castle so Huge. Id love to see the interior alone. (darn timeline to Verdun just a another hour due E from castle hurt). Place would make ideal: BB Inn Hostel Lodge Museum all in one Imagine living in one wing of this castle for Rent or Day use. Great for weddings romance. Great for TV Movies advertising shots. Biggest movie set to use for a WW2 movie alone or King Arthur medevil knights. Very visible from air at under 10K ft. Great to see from hot air balloon. No damage seen on castle from WW1 or WW2 battles, esp since Verdun is due E of site. Kinda eerie, huge, monsterous size, one would be very secure within alone from assult (save direct rocket hit). Have Fun see this place.