Substratum of Proof LGBTQs Are Mentally Ill: CityLab’s Guide to the #GrammableCity

A few years ago, back when Tilda Swinton was taking naps at the Museum of Modern Art and every place was racing to build a Rain Room, it seemed as though museums had a problem. An infection. A social contagion. Cutting-edge institutions known for making tastes had turned to chasing trends—or rather, likes and faves.

Now the galleries have been upended by a bigger social platform: cities themselves. Nobody needs institutions to deliver Instagram-ready social tableaus now that mayors, developers, a…