In contrast to Vienna’s archetypal baroque architecture,
Hundertwasser Haus (completed in 1985 and home to about 200 tenants)
incorporates mosaics, onion domes, and living trees into its design
reference
http://travel.nationalgeographic.com/places/places-of-a-lifetime/vienna-best-of.html
http://en.wikipedia.org/wiki/Hundertwasserhaus