Friedensreich Hundertwasser was an Austrian painter, architect and sculptor – often at the center of controversy. He took from painting and other arts what he wanted and applied them in unconventional ways to the realm of architecture, integrating his fantastic patterns and approaches with a strong attention to green. He was passionate enough about his work do do structures such as the Hundertwasserhaus in Vienna (shown above) for free simply to make the world a better place.