N.K. Jemisin is an award-winning (including the Hugo an unprecedented three times in a row) author of speculative fiction short stories and novels who lives and writes in New York. Besides writing, she also is a counseling psychologist and educator, and a political/feminist/anti-racist blogger. She used to write a science fiction column for the New York Times Book Review, and still writes occasional long-form reviews for the NYT.
The City Born Great is a story of her hometown, New York, telling how it develops to the point where it is being 'born' after growing for a long time, and the challenges that exist for cities what reach this stage of maturity.
Neither the idea of cities as entities, living things, separate beings nor the notion of beings, things, groups going through transcending stages and steps are new in themselves. Uncharitably I could describe the short story at hand as Childhood's End for Cities; more charitably I would describe it as fascinating, breathless, headlong, and absorbing in its detail and drive towards (re)birth, and reminiscent of the magic Charlie Human can evoke when he's not too focused on action.
And if I feel that some parts of the climactic scene do not live up the the initial setting and build-up then that's my opinion, and yours might well differ. Have a look yourself, it's worth doing so!
The story is hosted on Tor.com, and so is the picture by Richie Pope that goes with it.
Links: N.K. Jemisin - The City Born Great - Tor.com - Richie Pope