One of the museums is in Madrid, and it's full of antique printing machinery. I am a sucker for outdated printing technology so I was basically in heaven when I visited. I learned what a pantograph was. And saw old industrial litho presses.
The other one is in Segovia, where I took these photos. The permanent exhibit was not as print-focused. But unlike in Madrid, the water wheels are still running. Of course, there is a bar there, too. ('What museum doesn't need a bar?' would be the Spanish response to your raised eyebrows).