Lighthouses: not just for keeping ships off rocks

Honestly how cute is this? These replicas of Huntington Lighthouse sit atop the street signs in the incorporated village. We were living here for about a year before I first noticed them, which gives you an idea of how aware of my surroundings I am. My excuse is that they are fairly high up and I know the roads so I don't need to look at the signs, but still...
They slightly bug me because they aren't functional in any way. I think they should have little doors at the back so birds can nest in them, but they are purely decorative. Not much use as foghorns either, rather like the original which is still silent since it's latest malfunction.