The excellent Teknikens och Sjöfartens Hus is a short way to the west. It's a technology and maritime museum, with aircraft, vehicles, a horse-drawn tram, steam engines, and the amazing 'U3' walk-in submarine, just outside the main building. The submarine was launched in Karlskrona in 1943 and decommissioned in 1967. Upstairs is a superb hands-on experiment room for kids, which will keep them (and you!) enthralled for ages.
