Last Sunday I just happened upon a great National Geographic documentary on the stadiums that were built for the upcoming World Cup called "Build Up to the Cup". It does a great job of taking you through the challenges that the design teams faced with the weather, new technologies and construction methods and really makes you appreciate the engineering and architectural achievements behind these amazing structures. I can't believe they had to wait until the last piece was in to see if the arch on Durban's stadium was built correctly!
I'm certainly going to watch it again. Here's the link for details on the repeat broadcasts.