![](https://wtop.com/wp-content/uploads/2013/05/291894.jpg)
![](https://wtop.com/wp-content/uploads/2013/05/291892.jpg)
WTOP/Max Smith
![](https://wtop.com/wp-content/uploads/2013/05/291891.jpg)
WTOP/Max Smith
![](https://wtop.com/wp-content/uploads/2013/05/291890.jpg)
WTOP/Max Smith
![](https://wtop.com/wp-content/uploads/2013/05/291889.jpg)
WTOP/Max Smith
![](https://wtop.com/wp-content/uploads/2013/05/291894-260x174.jpg)
![](https://wtop.com/wp-content/uploads/2013/05/291892-260x174.jpg)
![](https://wtop.com/wp-content/uploads/2013/05/291891-260x174.jpg)
![](https://wtop.com/wp-content/uploads/2013/05/291890-260x174.jpg)
![](https://wtop.com/wp-content/uploads/2013/05/291889-260x174.jpg)
The annual event was held on the National Mall Saturday, May 11.