During the twentieth century, the United States witnessed the carving of one of the greatest architectural phenomenon of the time, namely Mount Rushmore. It is here that workers painstakingly chiseled the faces of three presidents into the granite mountainside in the Black Hills of South Dakota. Although brilliant and awe inspiring, this type of rock carving was not new. In fact, this kind of architecture can be found on the Indian sub-continent dating back to the 4th century BC.. Originally, Indian artists began carving trees (wood) with r ....