Rapid City, South Dakota City had survived a boom and bust and was establishing itself as an important regional trade center for the upper midwest. Although the Black Hills became a popular tourist destination in the late 1890s, it was a combination of local efforts, the popularity of the automobile, and construction of improved highways that brought tourists to the Black Hills in large numbers after World War I. Gutzon Borglum, already a famous sculptor, began work on Mount Rushmore in 1927 and his son, Lincoln Borglum, continued the carving of the presidents' faces in rock following his father's death in 1941. The work
Largest creative work It has 2.2 billion knots, measuring . Largest creative work The largest creative work is the largest or longest item in different fields of creative works. Some pieces were created with the specific intention of holding the record while others have been recognised for their size after completion. "The Mousetrap" has been running continuously in London since 1952. It has by far the longest initial run of any play in history, with more than 25,000 performances taking place, and the longest running show (of any type) of the modern era. The world's largest hand woven carpet is a Persian carpet