A new photo to show you all today:
I live in a river valley full of old mill towns, so we have a number of these old metal truss bridges. The paint is a bit flaky and rusty (when the mills left, they took the economy and the bridge-painting budget with them) but the structure is still solid, and full of great angles and intersections.
Most of them are a pain in the neck to get close to on foot to take pictures of. As a result, this one is an impulse shot: pulling my camera out of my bag and shooting out the open car window. Not ideal, but I'll take the results. : )