Moby wants you to join his perpetual pool party in Los Angeles, and a group of scientists wants China to use "spatial economics" to design more walkable cities. Plus: informal transit in Nairobi, a failed utopia in California, radical ideas for the Vegas of 2034, and a significant prehistoric site that's currently

Miami's starchitect magnet, "Super Zips" for the rich, the real story behind our city-dwelling squirrels, and why Americans are driving less. Plus, a chilling portrait of homelessness in gentrified New York City—all in today's urban reads.