This museum within the 17th century Gripe Fortress, a 10-minute walk east of Diocletian’s Palace, traces Croatia’s historical connections with seafaring. One exhibition looks at merchant maritime development, from ancient times up to the advent of the steamboat, while another examines maritime war craft and the numerous battles that have taken place on the Adriatic through the centuries. Displays include model ships, navigational equipment, weapons (including the first torpedo, from 1866, designed by a Croat and manufactured by an Englishman in Rijeka), and paintings of sea battles.