#architecture #modernism #museums #im pei #east building #national gallery of art #washington dc #20017 #photographers on tumblr #black and white

#bridges #stone #masonry #arches #aqueduct #catoctin creek #frederick county #maryland #20017 #photographers on tumblr #black & white

#capitols #stairways #prohibitions #us capitol #washington dc #20017 #photographers on tumblr