Vienna’s Hundertwasserhaus was designed by the contemporary Austrian artist Friedensreich Hundertwasser.  Its irregular checkerboard-like design and unconventional blend of elements have made it one of Vienna’s most popular destinations.

The complex boosts 52 apartments, four offices, 16 private terraces, three communal terraces, and over of 250 trees and bushes.

Source: Hundertwasserhaus [wikipedia]