They have U505, a submarine captured by the Americans in WWII. Its story is pretty cool:
http://en.wikipedia.org/wiki/German_submarine_U-505

As a side note: Not 4 days after seeing this, I met with one of my boat building friends and he showed me a flare gun that was taken off this sub when it was captured. Like they say at Disneyland: It IS a small world, after all.