Otto Wagner was an exceptionally talented architect, though not, I think, the genius that many people would credit him with being. In the most emblematic work for which he is known, the Kirche am Steinhof in Vienna, there is too much angularity and not enough flow, curvature. For a free-standing structure it feels a bit stultified and uptight despite the brilliance of the individual elements of the design. I much prefer his Post Office Savings Bank and Stadtbahn stations.
Stumbling through the archives the other day, I came across this unexecuted Otto Wagner design for an Imperial Russian Embassy in Vienna: one now-vanished emperor’s embassy to another. From earlier in his career, it’s not as distinctively Ottowagnerian, but I admire the composition of the façade. The bulbous curved projections into the courtyard, however, are unfortunate, and too large for the space.