Among the properties managed by the company that runs the famous Genoa Aquarium is the Galata Museo del Mare, or Museum of the Sea. This maritime museum is a nice complement to an aquarium visit.
Galata was a town near the ancient city of Constantinople (now Istanbul), and was part of the Republic of Genoa from the 13th to the 15th centuries. The neighborhood where the Museo del Mare is located is known as Galata, given that name in the 19th century by the city as a nod to its former republic. The neighborhood was redeveloped in the 1990s to be less industrial, and the Galata Museo del Mare opened in 2004.
The Galata Museo del Mare covers four floors with exhibitions on different kinds of sailing ships and sea explorations. One entire floor is dedicated to trans-Atlantic migrations, including one called “La Merica! From Genoa to Ellis Island,” and of course there is a section devoted to famous Genoa native Christopher Columbus.
From March through October, the Galata Museo del Mare is open daily from 10am until 7:30pm. From November through February, the museum hours are Tuesday-Friday from 10am-6pm, Saturday-Sunday from 10am-7:30pm, and closed on Mondays. Tickets to just the Galata Museo del Mare are €12 for adults and €7 for children, but you can get a combination ticket with the Genoa Aquarium (it's located a few steps away) for €35 for adults and €22 for children.