Papanikolis was one of the most successful Greek submarines during the Second World War.
Wikipedia https://en.wikipedia.org/wiki/Greek_submarine_Papanikolis_(Y-2)
Address 24 Ακτή Θεμιστοκλέους, Πειραιάς 18536, Greece
Coordinates 37°55'56.981" N 23°38'45.304" E
