If you don't know where to put your old ship...

... maybe do like some medieval folks in Konstanz. Use it as ceiling in your house.

I'm not pulling your leg - that's the new and kind of sensational find recently made: A basement ceiling that can be dated to 1244 mostly consists of part of a ship. There's not so much detail to be found on the 'net yet, but if you read German, there's a little bit here at the SWR page.