Alexanderhaus und Berolinahaus by Peter Behrens

Peter Behrens is one of the main figures of early modern architecture.
Around 1900, he brought modernism into (industrial) architecture, invented Corporate Design by creating everything from the typography to ashtrays and the actual factory building for major german enterprise AEG.
He was one of the founders of the "Deutscher Werksbund" and "The Ring", Le Corbusier, Gropius and Mies van der Rohe learned from and worked with him.
In the 30s he was entrusted to recreate Alexanderplatz, the 2 buildings left by him are the Berolinahaus and the Alexanderhaus: