Sounds like this could be the premise for a chapter in the book "Invisible Cities": I shall now explain to the city of Fransisca, the blue city upon who's gold

Sounds like this could be the premise for a chapter in the book "Invisible Cities": I shall now explain to the city of Fransisca, the blue city upon who's golden shores the azure waves drift over, and above which a sapphire sky is rent asunder by the golden sun, bringing an ever so grand glistening upon its ember shores. But above Fransisca, beyond it's beaches and waters, lies another city, marked by furling banners of red, whoe jealousy of Fransisca has caused it to erect a barrier so as to not see its flourishing. Fransisca with her petulance at seeing the barrier erect, so too constructed a barrier upon her shores. Concrete slabs covering her beaches, costal grasslands made way to fences. In this way Fransisca became a mirror image of her overseas counterpart. And the crimson city, unable to see Fransisca eventual forgot why the barriers were build. One by one each stone brick was removed. Parking lots were raised in who's place grasslands grew. And in such a manner the crimson city became Fransisca. Actually, Fransisca has always been the crimson city and what we know today as Fransisca is actually the city of red banners of old. Time will tell if the true Fransisca will be remembered.