"Sighting"
Oops. Good catch dieseltaylor. Way to sight the error in the photo caption, and to even cite it here in comments! I've now corrected it. "Site" was left over from an earlier construction referring to the site of the building. But you don't need to know that. I go out of my way to avoid silly mistakes like that, but sometimes, when working near, um, the speed of light, they creep in. Thanks for keeping me on my toes and in my spelling book.