Berlin Hauptbahnhof

Berlin Central station is the largest railway station in Europe (by total floor area) - at least in 2006, when it was built, it was (and I don't have heard that there has been built any larger one). It has got some 7 floors full of shops, restaurants and trains are arriving and departing in several levels - one for intercity trains, another ones for innercity S-bahns and U-Bahns. [full_width]