I was looking at a site with LEGO clone bricks, when I saw EXIN. Remembering that my brother had a (almost) full Western city and a castle or two, I followed the link to Eddie The Wild's EXIN Castillos Homepage... and while checking the site and trying to find the one my brother had (out of a very faded memory) I stumbled into this: Castillo de los pitufos
Here's a pic, there's few more.