The Drassanes Reials were a factory for warships, and the factory is what survives. From the late thirteenth century the Crown of Aragon built and repaired its galleys here under a stone roof, in long parallel naves whose pointed arches stand high enough to work under a mast. The sea came up to the doors, so a finished hull was slid straight out of the building onto the water. Everything between those doors and today's quayside is made ground.
Most of what you walk through was rebuilt in the early sixteenth century on the medieval footings, after storms wrecked the earliest bays. Ship work stopped in the eighteenth century and the building spent two hundred years as an army arsenal, barracks, prison and cannon foundry. The soldiers left in 1935 and the museum opened the following year. Its centrepiece is the Reial, the flagship John of Austria commanded at Lepanto in 1571: sixty metres of gilded hull, fifty-nine oars, two hundred and thirty-six men on the benches. What fills the nave is a full-size reconstruction.