I can confirm this. It's one of the most impressive museums I've ever been to.

The whole thing is also a living example of lessons about project and product management: how uncontrolled requirements made by the major stakeholder (in this case, king Gustaf Adolf) changed the project scope (so many guns were ordered to be fitted that the ship had to have two gun decks, with too high center of gravity) which then caused a major technical disaster (it capsized in wind). And then starts the hunt for a scapegoat.