Yes, we have the Shabbos siren. It sounds like an old "Air Raid" device. The religous Jews sound it off on Fridays twice at sundown, to let their community know that the Sabbath is approaching. It's very loud, and I'm glad that I don't live close to one.

Here's some old Cold War Civil Defense sirens:
Cold War Era Civil Defense Museum-Sirens Page
Breukelen advocaat Reviewed by Breukelen advocaat on . nuke sirens No matter how many times I hear them the nuclear sirens they have here catch me off guard when they test them. I guess thats part of living near a nuke power plant though and there kinda trippy when high so there not all bad I guess they just tend to wake me up sometimes. Anyone else live near a place with these sirens or similar? Rating: 5