A square of hexagon mesh languished in the street. "What is that?" I wondered, and looked around. It had escaped from a gravel parking lot. Apparently, they no longer simply dump loads of gravel all over an empty lot and hope for the best. First they lay down grids to stabilize and even out the surface. The lot was in need of more gravel. Exposed squares formed a fascinating pattern that appeared and disappeared across the surface of the lot. I took many photos, but resisted the urge to walk off with one of the mesh squares. My suitcase was already packed.