I am in front of the Capitol building, standing an a concrete pylon as a I pan with the camera. Looking towards the Washington Monument... you first see 3rd St. then the back of the stage, looking past all those people, past 4th St. is the Washington Monument.
I have "heard" it takes a at least a million people to fill this space. My guess is @ most it was 3/4 filled... 600k-700k ?
Video blog on the bus trip and some of the great people I met:
As soon as I get more video edited and loaded to you tube, I will up date here.