things with wheels that are cool
That last one is a German Messerschmitt Me 323 Gigant the largest aircraft used during WWII. Even more amusing, this was a powered variant of the Me 321 assault glider, which was so large they needed three Bf 110 twin engine fighters to tow them, and later the He 111Z, which was two He 111 bombers joined together at the wings with a fifth engine in the center...
This is a Messerschmitt Me 323, aka. Gigant. More here: http://en.wikipedia.org/wiki/Messerschmitt_Me_323
German ww 2 : http://en.wikipedia.org/wiki/Messerschmitt_Me_323
Bottom picture is a Messerschmitt Me323 "gigant";http://en.wikipedia.org/wiki/Messerschmitt_Me_323Regards,Boonie