These are some sketches I did while in Europe this summer that I have yet to actually scan and post. I used a straight object to mark out the vanishing points but everything else is freehand.
VM Houses by BIG Architects in Copenhagen. Pencil and India ink on bristol board - 9" x 11".
Street along the river in Cologne, Germany. I was sitting in the grass drinking for this one. Pencil on newsprint - 9" x 14"
Bayer Headquarters by Hurphy/Jahn near Munich, Germany. Pencil, India ink, and watercolor on cotton rag paper - 10" x 7".