An overlay of parking and sports grids, as spotted by Alex S. MacLean in Waltham, Massachusetts; there is also a carless version. In the middle of the night, after the last shopper and basketball player have gone home, guerilla gardeners do battle with Wal-Mart security guards.
Meanwhile, in the Portfolio section of MacLean's website, the series Dwelling merits a good look.
Of tumuli, moonrises, and a nice Par 3