| 2. |  | Crown Fountain, excavation and construction of reservoir, January 16, 2004 | Excavation; Retaining walls; Structural systems; Snow; Tents; Skyscrapers; Construction equipment; Construction workers; Concrete; Automobiles; | Looking south at the structural steel of the south tower and the weatherproof tent that was erected so that work could continue in cold weather. The Michigan Avenue street wall is visible in the background.... |
