a view down Wall Street to Trinity Church, which has been there since 1846; most of the buildings in the picture are, in fact, still there. What isn't there anymore is the humongous air-raid siren on the bishop crook lamppost. In those days, if the Russians were coming, we'd have a fairly good idea when they'd get here. Now, our enemies strike without warning.
This one was spotted at the Sutter Avenue el station at Livonia Avenue.
What sirens, if any, does New York City have in operation today?