It is the largest rally station from Europe with a futuristic architecture designed by gmp-architekten von Gerkan, Marg und Partner. Berlin Hauptbahnhof is a very modern and big construction created from metal and glass panels that allow sunlight shining into the building, it also ha been constructed on 2 levels as you can see form the photos. It was built between 2002- 2006 and this railway station was built to replace the old railway station from 1871 and 1882 Lehrte Station. For this architecture construction it was been used 85.000 t for the structural steel and 500.000 m³ of concrete.
source: gmp-architekten