Rock City is a tourist attraction on Lookout Mountain in Lookout Mountain, Georgia. Opened in May 1932, the attraction gained prominence after owners Garnet and Frieda Carter hired Clark Byers in 1935 to paint “See Rock City” barn advertisements throughout the Southeast and Midwest United States; Byers painted over 900 barn roofs and walls, in nineteen states, by 1969. Since its earliest days, Rock City has claimed that it is possible to see seven states from a particular spot in Rock City; a scientist at the University of Tennessee, when asked to prove the issue in 2007, pointed out that the claim refers to seeing mountains and other high points in many of these other states, adding that the claim was made long before the air pollution associated with the proliferation of automobiles and coal-fired power plants, and summed up with “I never thought it significant.”