Plenty of pictures to see online ... I think Amazon has a DVD or video of the submarine they inspected in Tokyo Bay right after the war ended.
They said it stunk and that the head just had a place for your feet to fit as you sat backwards with a hole in the deck.
Just like some of the bars I've heard of over there from fellow sailors that is. I never made it over myself.
The seaplane would be the most interesting thing to me with the folding wings and fitting inside a hanger.
I wonder if one of those got saved?