What are some strange places where you've seen sirens? I'm not just talking about the actual location of the siren, but also where it's mounted, etc.
The strangest place for me would be the Thunderbolt in Fort Thomas, Kentucky. It's at a catholic church/school, but it's actually mounted on the roof of the church itself, not the school. It's not the first time I've seen a siren at a church that has its own school, but it is the only time I've seen one on top of a church.