Hundertwasser House

... with its golden spherical roof, seen from the office terrace, together with St. Elisabeth church (in neo-Gothic style).
To compare winter aspect, see https://www.blipfoto.com/entry/2281138865211179253

P. S. Yesterday's riddle's solution:
Heron, Crow, and Man,
Visitors to Emil's Park -
Yesterday's delight;-)