When out shooting, I often find myself taking photos of rooflines. I guess I’m attracted to the diagonal lines, especially when they intersect with the diagonals of other roofs. I have been putting together a little series of roofline abstracts created by layering two or more photos together to create even more roofline diagonals.
Below is a roofline abstract from Castle Dome, an old mining town here in Arizona.
melinda anderson photography 
Wow….very unique! I like all the lines and intersections.
Very nicely done.