| 1 | Transmission lines built right among the clouds. | |
| 2 | A downtown of glass towers? | |
| 3 | When you are inside the jungle, away from the river, the trees vault out of sight. | |
| 4 | Soaring above the New York skyline, the Twin Towers were among the tallest buildings in the world. | |
| 5 | On mountain slopes that receive plentiful rainfall, huge Douglas firs rise in towering columns. |