Important: please keep your image under 700 pixels on the longest side for in-line viewing, and please keep the FILE SIZE UNDER 300kb. Note that this includes photos hosted off-site (at Flickr, Photobucket, your own site, etc). Are you new to this thread? The general guidelines for these Wednesday threads are right here: http://www.photo.net/nikon-camera-forum/00W7km. Remember: only one image each week!Hello, Nikonistas. Hope your March is going well. On an uncharacteristically balmy night, I spent some time watching the DC Metro system's new Silver Line marching its way ever so slowly out towards Dulles Airport. This giant yellow truss - one of four doing an ultra-slow-motion ballet from pillar to pillar through the Tysons Corner area - is the tool they use to lift and align the massive sections of track support as they go up. It's been quite a thing to watch. What you can't see here are the dozen guys in hardhats crawling around the inside of that apparatus, working the night through. Go, guys. Maybe just a little faster? Pointed your Nikon gear at any Great Works? Share a photo!