I was blown away when I saw these images of the Seed Cathedral currently under construction in Shanghai. The building will be the centerpiece of the UK Pavilion for the Shanghai Expo, starting May 1, 2010. 60,000 long clear acrylic rods form the outside of the building; at the end of each of the rods seeds have been embedded, creating a massive seed vault that will move in the wind.

See more images at The Big Picture