| 1. |  | Cloud Gate, attaching steel plates, May 18, 2004 | Steel; Construction workers; Welding; Ladders; | Tack welding the seams between the steel plates surrounding the omphalos. Welding the seams between the steel plates was one of the most difficult parts of the process of putting the sculpture together.... |
| 2. |  | BP Bridge, spanning Columbus Drive, November 22, 2003 | Hoisting machinery; Girders; Scaffolding; Construction workers; Streets; Skyscrapers; | On November 22, 2003, Columbus Drive was shut down to traffic in both directions for 12 hours to allow the Bridge’s spans over Columbus Drive to be put into place. Three box girders were hoisted into... |
