The most prominent sound in Switzerland has to be the bell. I hear bells every day without exception.
Church bells ring on the hour and half-hour (and even on the quarter-hour). At 10pm, they ring a lot to announce the end of the day.
But some bells aren’t so punctual. Cows (and some sheep and goats… and even some donkeys!) wear bells around their neck. We can hear cow bells from our apartment window. So Swiss!
What sounds are unique to where you live?