Does any one know what that structure with tons and tons of lights is that sits on top of the far away mountain ridge? I believe it's the ridge referred to as the Ridge and Valley Appalachians. At night it looks like a huge structure floating in the sky since you can't see the ridge very well. In day light it appears to be a huge white structure. I think it's in the direction of Hagerstown but of course much further since it's on the mountain.