Museum in Castelló d’Empúries

In its heyday, this farinera (flour factory) was producing 20,000kg of the white stuff each day. Even if milling innovations aren't your thing, a wander through this museum takes you on a surprisingly diverting journey from sheaf to loaf, with huge turbines to gawp at, plus a hypnotic soundtrack of hydraulics.

There's a kids' trail to guide younger visitors around.