Compexity and difficulty in a model is good for your sense of achievement at the end, but sometimes you just want to relax your efforts a bit and slowly poodle along. That's why I particularly enjoyed making these two imaginary castles from JF Schreiber. First is Schloss Buchenberg to a scale of 1:120, and then Burg Hoheneck in 1:160 scale.
To find out more, go here:
http://www.schreiber-bogen.com/index.php?dev=1