<p>My office window overlooks Ground Zero - the structure of the Freedom Tower is unbelievable. The way the structure twists, and how it is being cross-braced for maximum strength is truly a sight to see. Add to that all of the other construction going on including the memorials (where the WTC used to stand), the new transportation center, and the fact that the whole site is cut in half by a subway line makes you think how civil engineers can be incredibly valuable!</p>