>Spanish villages? I know where czech villages (Böhmische Dörfer) comes from, but spanish I have no idea. :)

We also say spanish villages. And you are correct, the "I have no idea" is the actual meaning of the expression :)

BTW, there was a fad here, a couple of years ago, to build sentences like "in Spain, the spanish villages are called just villages". All the way to "On Mars, 'Martian chronicles' will be published as just 'Chronicles'".