Riding Metro
We took metro down and back to the Folk Life Festival. It was a breeze, except the walking-through-the-parade-to-the-Federal-Triangle-station part.
Matthew absolutely loves riding metro. When the train started out of the station he let out a loud Woop! of joy that made everyone around laugh.

He convinced Daddy to let him hang onto the top rail.

Then, since Matthew did it, David wanted a turn.

Neither one napped on the way home, even though we had been on our feet in the sunshine for 3 hours. They were both having too much fun on the train.