Friedensreich Hundertwasser was an Austrian artist known for his style of transautomatism painting. Transautomatism focuses on the viewer's fantasy interpretation rather than objective representation, with different viewers seeing different things. Hundertwasser believed that straight lines were "godless and immoral" and that humans had lost their organic connection to nature. His paintings and architectural works featured fluid, organic shapes and spirals. Some of his most famous works included the District Heating Plant in Vienna, the Green Citadel in Magdeburg, and the Forest Spiral in Darmstadt.