I was pleased with this image and was trying to figure out how it might fit the challenge, when I realized that the sky is divided into half by the building, and the building is divided into half by the structure running up the corner, and the corner is divided into (almost) half with the logo (OK, that is stretching it :-).

This is the Capital Traction Railway Company building in Georgetown, now known as The Car Barn in its renovated state. For another shot of it, go to http://www.pbase.com/helenpb/image/94077399