epaselect epa05554486 US First Lady Michelle Obama (C-R) hugs former President George W. Bush (C-L) while President Barack Obama (R) and former First Lady Laura Bush (L) look on at the opening of the Smithsonian's National Museum of African American History and Culture in Washington, DC, USA, 24 September 2016. (C-R) hugs former President George W. Bush (C-L) while President Barack Obama (R) and former First Lady Laura Bush (L) look on at the opening of the Smithsonian's National Museum of African American History and Culture in Washington, DC, USA, 24 September 2016. The opening ceremonies of the 400,000-square-foot museum attracted thousands of attendees.  EPA/JIM LO SCALZO JL10 (JIM LO SCALZO / EPA)