Framing the Flag

I'm really not the flag-waving type, and frankly I'd be just as happy if a city like New York would display flags from around the world from the million or so flag poles erected in about every park and multiple buildings, including schools, hospitals, fire and police stations, post offices, libraries, etc. I do like a dash of color against the otherwise clear blue sky and here I liked the framing by the oak branches at this tiny abandoned fort (?) in northern Central Park - with no signs or plaques to explain its significance