The American Girl Doll company has begun construction on its newest store in the Mall of America. The store targets girls ages three to 12 with its line of historical, contemporary and baby dolls. Suzanne and Hannah Farley, of West Des Moines, Iowa, have been to the AG store in Chicago, but said a store in Minneapolis would be much closer. Hannah Farley, 10, has Kailey, the 2003-04 doll of the year, a surfer girl from California.