National Geographic : 1949 Jul
100 From 1,500 Feet, Southern California's "Circle City" Looks Like a Plane Geometry Problem R. B . Taylor, who founded Corona, ringed his new town with a three-mile boulevard, an idea he picked up in Omaha. After 63 years the city covers 16 square miles; Grand Boulevard encircles business and older resi dential sections. From 1913 to 1916 auto races, attracting national attention, were held on the circle.