I guess we are talking about military ships here, since ive been on many passenger ships

... Anyway, i've been on 2 historical ships of the Hellenic navy, the Fletcher-class destroyer "Velos" and on a 1911 pre-dreadnaught battleship, the "Averof". Both are anchored in Athens as museum ships. Averof fought in the Balkan wars and WW1 and served in WW2 as a anti-aircraft platform.