In 1174 the Italian architect Bonnano began work on what would become his most famous project: A bell tower for the local Cathedral. The tower was to be eight-stories and 185 feet high. There was just one "little" problem: builders quickly discovered that the soil was much softer than they had anticipated, and the foundation was too shallow to hold the structure. And sure enough, before long the bell tower began to tilt... and it continued to tilt... until finally the architect and the builders realized that nothing could be done to make what became known as the Leaning Tower of Pisa straight again. Read more here cc-vw.org/sermons/rock.htm