Barcelona's sprawling medieval shipyard sits behind Christopher Columbus. Called les Drassanes, the shipyard is a sprawling complex of high ceilings supported by ancient brick arches. As Spain's attention moved from the Mediterranean to the Atlantic, Barcelona's seafaring industry dwindled. The factory was eventually abandoned, and now houses the Maritime Museum. The museum has dozens of ships from Barcelona's past, and lots of other exhibits about the city's maritime past. The collection is only of medium interest, but the building itself is remarkable, and well worth a visit.