Walk around the downtown area of a really large city and you quickly realize how small we really are. Sure, mountains are bigger, but stand next to a large skyscraper, look straight up and it quickly puts you in your place. When you study the size of these structures, you can appreciate all the teamwork and manpower it takes to build just one. Look down the street and start counting how many you see in the skyline and you wonder how it all happened.

This is another shot from downtown Houston.