First, the Berlin Hauptbahnhof.
The Berlin Central Station (Hauptbahnhof, or simply Hbf) is the main railway station in Germany and the largest crossing station in Europe. It was built between 2001 and 2006 on the site of the Lehrter Bahnhof/Stadtbahnhof. The Hbf has served as the Central Station of Berlin since 26 May, 2006. Before that, a part of the in-work building was used as S-Bahnhof ("Hauptbahnhof - Lehrter Bahnhof").
Well, this model is not so new - I made (and uploaded it) on April 3th evening. The difficult part of it was the S-Bahn route, since it's made of about 20 arches, as you can see. In this model, I made only one arch, and then copied and resized it according to the width of that part.
The Mosse-Palais ("Mossepalais, "Mosse Palais" or "Palais Mosse") was a building located in Voßstraße, first property of Rudolf Mosse. The façade at Voßstraße was made of Sliesian sandstone, and the front at Leipziger Platz was provided with a relief of scluptor Max Klein (called "The Survey of German Genius", Die Erhebung des deutschen Genius). The old Mosse-Palais was destroyed (along other historical buildings) in November 1943 by a massive air raid.
I'm already working on the old Mosse-Palais (actually, I first started it), but since there are no more than three useful pictures, it will be difficult to get it textured soon.