Torrid temperatures made an outdoor sketch difficult on my work break, so I ducked into the nearby Tysons-Pimmit Library (There's that "Pimmit" again!) to do a sketch in their main hall.
This library features interesting mid-80s architecture with industrial girders and upper walls made of glass blocks. The glass walls allow lots of daylight into the big library hall. And it was air-conditioned. My sketch does not do justice to the interlocking angles of the girders and I hope to do more accurate sketches in further visits.
Pentel Pilot G-2 pen on sketchbook page, about 6" x 5", July 17, 2012.