Your most interesting recording of 2010 - Social Sound Design

I've seen this done on alot of photography websites, so I thought it would be nice to try it here. We have all been busy out recording this year, and I am just wondering what the most Unique and Interesting Sound or Ambience that you have managed to capture. It can be studio or on-location. It doesn't necessarily have to be of the best quality recording, just as long as we can hear it. Just 1 Soun