Friedensreich Hundertwasser started out as a painter. Since the early 1950s, however, he increasingly became focused on architecture, writing and reading in public, advocating natural forms of decay. In 1972, he had his first architectural models made for the TV-show ‘Wünsch dir was', in order to demonstrate his ideas on forested roofs, "tree tenants" and the "window right" of every tenant to embellish the facade around his windows. In these models Hundertwasser also developed new architectural shapes, such as the "eye-slit" house and the "high-rise meadow house".