"The Church of the Holy Trinity, popularly known as the Wotruba church, looks more like an ecstatic pile of blocks than a building. And no wonder: its creator is sculptor Fritz Wotruba, renowned for his spare, abstract images of the human form. This two-storey structure is made entirely out of reinforced concrete. There are 152 different pieces of it bolted together to frame plate-glass windows offering views from its hillside location in an outlying area close to the Vienna Woods."