The 30-foot memorial of Dr. Martin Luther King Jr., a social activist, civil rights leader and Nobel Peace Prize winner, stands tall in the sunlight, June 6, 2013, at the National Mall in Washington, D.C. The sculpture was designed as a lasting tribute to Dr. King Jr.’s legacy and as a monument to freedom, opportunity and justice for which he stood. (U.S. Air Force photo by L. Cunningham)