The Lincoln Memorial is seen in Washington, DC on August 22, 2013. A full week of activities are planned ahead of the 50th anniversary of the 1963 March on Washington and Martin Luther King, Jr's historic "I have a dream" speech advocating racial equality from the steps of the Lincoln Memorial, including a march along the original 1963 route on Saturday and speeches by US President Barack Obama and former US Presidents Bill Clinton and Jimmy Carter. TOPSHOTS/AFP PHOTO / Saul LOEB