"Wabe" (Honeycomb), design: Ludwig Mies van der Rohe, 1922. Bauhaus-Archiv Berlin / © VG Bild-Kunst, Bonn 2016.

The 1922 project design for a triangular twenty-storey office building in the shape of a glazed “crystal honeycomb” (Wabe) was Ludwig Mies van der Rohe’s spectacular contribution to a high-profile competition inviting ideas for Berlin’s first high-rise at Friedrichstraße railway station. However, even at this early stage, the design was excluded from the official presentation.

Bergdoll, Barry (2009): Sheer Glass Wrapping for a New Architectural Expression. Mies van der Rohe's Entry Honeycomb for the Bahnhof Friedrichstrasse Competition, in: Bauhaus: A Conceptual Model, publ. by Bauhaus-Archiv / Museum für Gestaltung, Bauhaus Dessau Foundation and Klassik Stiftung Weimar, Exhibition Catalogue, Ostfildern: Hatje Cantz, pg. 115ff.