Today, the National Park Service (NPS) marked its 100th anniversary. In DC, one of the ceremonies involved over 1,000 people coming together on the Mall to reproduce NPS' emblem live with different colored umbrellas. It took almost two hours to get everyone organized in temps that once again topped off into the 90s. I had fun traipsing around among the crowds of umbrella carriers, who, overall, were quite patient about the whole thing. I believe the project also made a Guiness record.
btw, I'm in the image that you can see through the link (you'll have to take my word on that): I'm the lone figure on the sidewalk on the other side of the road. Behind me is the WW2 memorial, where a special naturalization ceremony was being set up as well. Some days, I just love D.C.