LET YOUR MOTTO BE RESISTANCE features stunning and revealing portraits of African-American pioneers, superstars, athletes and advocates. The first of four exhibitions presented as part of Atlanta History Center's Civil War to Civil Rights series, the exhibit uncovers 150 years of U.S. history in African-American culture and society, prompting viewers to rethink diversity and truly celebrate the heritage of African-Americans. Through April 25. Free-$15. Mon.-Sat., 10 a.m.-5:30 p.m.; Sun., noon-5:30 p.m. 130 W. Paces Ferry Road. 404-814-4000. www.atlantahistorycenter.com.