Photos: MLK memorial on National Mall

People wait in line during sunrise.  (Brendan Smialowski/Getty Images)

Security personnel overlooks the Mall at the Martin Luther King, Jr. Memorial Dedication ceremony in Washington, DC.  (Mladen Antonov/AFP/Getty Images)

People wait in line for their seats.  (Brendan Smialowski/Getty Images)

People are seen asleep manning their seats a couple of hours before the start of the Martin Luther King, Jr. Memorial dedication ceremony in Washington, DC on Oct. 16, 2011.  (Mladen Antonov/AFP/Getty Images)

Crowds await the start of the ceremony.  (Mladen Antonov/AFP/Getty Images)

A woman peeks out from under a cover awaiting the start of the ceremony.  (Mladen Antonov/AFP/Getty Images)

An elderly woman adorned with the colors of the American flag awaits the start of the ceremony.  (Mladen Antonov/AFP/Getty Images)

A woman awaits the start of the Martin Luther King, Jr. Memorial Dedication ceremony.  (Mladen Antonov/AFP/Getty Images)

Fans catch a little sleep before the start of the Martin Luther King, Jr. Memorial Dedication ceremony.  (Mladen Antonov/AFP/Getty Images)

A man wearing a crown takes pictures at the Martin Luther King, Jr. Memorial dedication ceremony.  (Mladen Antonov/AFP/Getty Images)

A woman holds up the event brochure at the Martin Luther King, Jr. Memorial dedication ceremony.  (Mladen Antonov/AFP/Getty Images)

A woman holds up a poster of Dr. King at the Martin Luther King, Jr. Memorial Dedication ceremony.  (Mladen Antonov/AFP/Getty Images)

People arrive and take seat for the dedication ceremony.  (Brendan Smialowski/Getty Images)

A woman reads a program before the dedication ceremony.  (Brendan Smialowski/Getty Images)

People wait for the ceremony to begin.  (Brendan Smialowski/Getty Images)

Buttons and programs are sold before the dedication ceremony.  (Brendan Smialowski/Getty Images)

Rev. Jesse Jackson speaks to a reporter before the dedication ceremony.  (Brendan Smialowski/Getty Images)

A man records the events.  (Mladen Antonov/AFP/Getty Images)

People sing “Lift Every Voice And Sing” during the dedication ceremony.  (Brendan Smialowski/Getty Images)

Rev. Cal H. P. Merrell, of Atlanta, Georgia, and others sing “Lift Every Voice And Sing”.  (Brendan Smialowski/Getty Images)

A woman arrives for the Martin Luther King, Jr. Memorial Dedication ceremony.  (Mladen Antonov/AFP/Getty Images)

Martin Luther King III speaks during a dedication ceremony at the Martin Luther King Memorial.  (Brendan Smialowski/Getty Images)

Eldest son of Dr. King, Martin Luther King III speaks to the crowd.  (Mladen Antonov/AFP/Getty Images)

Eldest son of Dr. King, Martin Luther King III, with wife Andrea and daughter Yolanda Renee, speaks to the crowd.  (Mladen Antonov/AFP/Getty Images)

Dr. Christine King Farris, sister of Martin Luther King Jr., waves after speaking at the dedication ceremony.  (Brendan Smialowski/Getty Images)

Eldest living sisiter of Dr. King, Dr. Christine King Farris speaks to the crowd at the Martin Luther King, Jr. Memorial Dedication ceremony.  (Mladen Antonov/AFP/Getty Images)

Elder Bernice King, daughter of Martin Luther King Jr., speaks during a dedication ceremony at the Martin Luther King Memorial.  (Brendan Smialowski/Getty Images)

Second daughter and youngest child of MLK, Bernice King, speaks to the crowd.  (Mladen Antonov/AFP/Getty Images)

Andrew Young speaks during the dedication ceremony.  (Brendan Smialowski/Getty Images)

Rev. Cal H. P. Merrell, of Atlanta, Georgia, holds a photo of Coretta Scott King, wife of Martin Luther King Jr.  (Brendan Smialowski/Getty Images)

Rev. Joe Lowery speaks during the dedication ceremony.  (Brendan Smialowski/Getty Images)

Journalist Dan Rather speaks to the crowd.  (Mladen Antonov/AFP/Getty Images)

Reverend Jesse Jackson speaks to the crowd.  (Mladen Antonov/AFP/Getty Images)

Gospel duo Mary Mary performs.  (Mladen Antonov/AFP/Getty Images)

People sing during the dedication ceremony.  (Brendan Smialowski/Getty Images)

People clap during the dedication ceremony.  (Brendan Smialowski/Getty Images)

People hold up a poster of Dr. King at the Martin Luther King, Jr. Memorial Dedication ceremony in Washington, DC.  (Mladen Antonov/AFP/Getty Images)

People hold up images of Dr. King.  (Mladen Antonov/AFP/Getty Images)

A woman holds up a poster of Dr. King.  (Mladen Antonov/AFP/Getty Images)

US President Barack Obama and First Lady Michelle Obama with daughters Malia and Sasha and mother-in-law Marian Robinson visit the Martin Luther King Jr. Memorial.  (Mandel Ngan/AFP/Getty Images)

President Barack Obama listens to Harry Johnson, president and CEO of the MLK Jr National Memorial Project Fund, as he tours the grounds with his family prior to the dedication of the Martin Luther King, Jr. Memorial on the National Mall.  (Mike Theiler-Pool/Getty Images)

President Barack Obama, First Lady Michelle Obama and daughters Malia and Sasha walk in front of the Mountain of Despair sculpture at at the Martin Luther King Jr. Memorial.  (Mandel Ngan/AFP/Getty Images)

US President Barack Obama and First Lady Michelle Obama make their way to the stage for Obama to speak.  (Mandel Ngan/AFP/Getty Images)

First Lady Michelle Obama, US President Barack Obama and Vice President Joe Biden watch as soul diva Aretha Franklin performs.  (Mandel Ngan/AFP/Getty Images)

First Lady Michelle Obama reaches out to embrace Aretha Franklin after Franklin performed.  (Mandel Ngan/AFP/Getty Images)

President Barack Obama pauses as he speaks during the dedication of the Martin Luther King Jr. Memorial on Oct. 16, 2011.  (Mandel Ngan/AFP/Getty Images)

A woman records President Barack Obama’s address.  (Mladen Antonov/AFP/Getty Images)

President Barack Obama speaks during the dedication of the Martin Luther King Jr. Memorial.  (Mandel Ngan/AFP/Getty Images)

President Barack Obama appears on a screen seen from the media section.  (Eva Hambach/AFP/Getty Images)

The “Stone of Hope” sculpture is seen during the dedication.  (Mandel Ngan/AFP/Getty Images)

Women with matching T-shirts featuring Dr. King listen to President Barack Obama’s address.  (Mladen Antonov/AFP/Getty Images)

President Barack Obama makes remarks at the dedication ceremony.  (Mike Theiler-Pool/Getty Images)

A choir performs on stage at the ceremony.  (Mladen Antonov/AFP/Getty Images)

Rev. Cal H.P. Merrell poses with an image of Dr. Martin Luther King, Jr. and his wife Coretta Scott King.  (Mladen Antonov/AFP/Getty Images)

Marian Robinson, Obama’s daughters Sasha and Malia and White House advisor Valerie Jarrett applaud the conclusion of the dedication of the Martin Luther King, Jr. Memorial.  (Mike Theiler-Pool/Getty Images)