The urban grid, from Hippoadmus' Miletus to Cerda's Barcelona, served the infills and shadow was casted upon. Egalitarian in plee, yet polarized in zoning as is/was Manhattan's. Parks are the anomaly of intersecting the diagonal Broadway and the big hole of Central Park. Otherwise, objects occupy the blocks, from higher, higher, all the way to the flimsy super talls maximizing setting foot, in the final vacant feet, on the island!
Now, what if the grid was the park and all else was subtractive? Nothing casts shadow on it and it overlooks instead of being overlooked. The park/grid can be the terrain or a raised terrain; the connected urban roof. The antimonuments carve in and are a subtractive, rather than an additive act; think Michael Heizer's North, East, South, West at Dia Beacon or the Memorial pools in downtown Manhattan. The 3-dimensionality of the city, the superstructure underpasses, rather than oversees the grid. It cascades from it, wraps around within it, and creates a Down Under the Park Grid Overhang; DUPGO.
