Since we're talking about Osaka, I scanned a few more pictures of it into my computer:
Top left is "Montana the Dinosaur" (as I call him) in American-mura.
Top right is the Osaka Aquarium, which I visited with 2 Japanese friends you can see in the picture.
Bottom left is Dotonburi street and the famous crab sign there.
Bottom right is the Osaka Hard Rock Cafe behind Namba station, which is a lot of fun (but can have very long waits for a table.) I still have the souvenir t-shirt I got from there. In the circular building you can see behind it in the picture is the great used manga shop I mentioned.