The museum’s exhibits chronicle Barcelona’s maritime history from the time when Rome established the trading port of Barcino up to the 20th century. The museum does so using state-of-the-art exhibition technologies alongside artifacts. The museum is housed inside medieval royal shipyards, the Drassanes Reiales. So vast were these shipyards, built between 1255 and 1378, that it was possible to construct 30 galleys at a time. As a result, the crown of Aragón became one of the most powerful naval forces in the Mediterranean.