I couldn't tell you much about the Reichstag, but when my other half asked me to make a model of it as a Christmas present for her brother I thought I'd give this one a try. The look of the printed parts suggested that they would make up into a pretty little model (the base is approx. 21 x 16 cm), and so I think it proved.
I got it from Dieter Richter's now defunct Bastelbogen Online site. It was still available on the Wayback Machine a few weeks ago. For links and instructions on how to do it see this thread:
The Alhambra - or at least a bit of it