Seed Cathedral

I love art pieces and architectural structures that refer to nature, either in their form or purpose.
The Seed Cathedral, designed by Thomas Heatherwick, is an attempt to save the last remaining seeds of the earth.

It's porcupine-like spikes house the thousands of potential life forms that the Cathedral inhabits. With it's spiked exterior, the structure imitates the possibility of the seeds sprouting, protruding out of its home and into the infinite space.

The Cathedral can be seen in Beijing during the World Expo 2010.