A Viennese apartment house
The Mietshaus of Otto Wagner’s Vienna: shops below, identical flats above, a flat front (tiled like the Majolikahaus or gilded like its neighbour) under a broad bracketed cornice; or the older historicist block it answered.
The rules it illustrates
Necessity is art’s only mistress. Take the forms of a new architecture from modern life, modern materials and modern construction, not from past styles: what is not practical cannot be beautiful, and a building should show plainly what it is for.