The annual Artomatic festival runs May 29 to July 5 above the Navy Yard Metro station (Green Line – exit closest to National’s Stadium). There will be four bars inside, exhibits by hundreds of local artists, and two stages for live music & dance performances. Harry’s exhibit is on the second floor near the stage. It is on the north side of the building, with windows overlooking the Capitol.
See http://www.artomatic.org/participate/faq for more information