Can't compare with the tanks and guns but there are a few museums in the US that may be worth a visit. The Evergreen Aviation & Space Museum located in McMinnville, Oregon has the Spruce Goose as the main exhibit but also has loads of other stuff worth a look if you like things with wings. Another is the Castle Air museum in California which was fascinating because of some of the big post war bombers on display - some of those are BIG. The South Dakota Air and Space Museum near Rapid City was pretty good too with a few unusual exhibits and you can also get a tour of the USAF base where Rockwell B-1 Lancers are based and we saw a few flying from there (albeit from a distance). The final one, back in Oregon is the Tillamook Air Museum which has a few interesting aircraft but the we found fascinating was the blimp hanger it is housed in which is made from local wood.
) is In Norway, they have this huge 38 CM!!!! and 30 meter long coastal defense gun wich is a leftover from the german Hellmachine from 2nd world way :-3 (they testfired such a monster in denmark once during the 2nd world war, after it was made operational, the fire excersize could be heard 150 kms away and the pressurewave from the explosion shattered glass in a distance of up to 30 Kilometres, ((NOW THATS A BIG ASS GUN!!!)) ) XD
