It is in Camden, Maine, on top of the post office. I have been going to that town since I was a baby, and I have always wondered if it is a vent or a siren? Everyone tells me it's a vent but I'm convinced it's a siren.
http://www.panoramio.com/photo_explorer ... =date_desc
http://www.panoramio.com/photo_explorer ... =date_desc
Could it be a siren of some kind? If so, what kind is it?