A sketch made a week after September 11 shows architect David Childs divining how to organize the newly devastated site. He drew as he discussed potential solutions with Geoff Wharton of Silverstein Properties. This prescient document confirms the Twin Towers’ footprints as the site’s center of gravity and the importance of reinstating Greenwich and Fulton streets. Seven World Trade Center, marked “7,” is a given; dark circles indicate where additional buildings could be located in the future. Right: Childs’s note to his right hand, Jeff Holmes, imagines a tower even taller than the one proposed.