The Dana Discovery Center, as reflected in Harlem Meer in the north end of Central Park.
Although it looks Victorian, it was actually built in 1993. On the other hand, there are still gun emplacements around the lake that date to the War of 1812.
As far as the mourning doves are concerned, Damn the calendar! Spring is here! I have what sounds like a hundred of them moaning outside my windows this morning. I've only seen one pair actually mating on my fire escape, but I suspect dozens more are thinking about it.