Concrete, the world's most commonly used construction material, has been used in buildings that are anything but common. See concrete's versatility at work in an incredible range of structures, including Frank Lloyd Wright's Fallingwater, the Salginatobel Bridge in the Swiss Alps, and Dubai's Burj Khalifa (currently the world's tallest building).
| Name | Type | Role | |
|---|---|---|---|
| Stephen Ressler, Ph.D. | Guest Star |