This is another great example that sometimes the simpler an idea is - the more powerful. In this case the straight forward idea was to hang thousands of white ballons up in the air inside stunning architectural gemstones which resultet in this mindlowing and surrealistic effect.
Artist, dancer and choreographer William Forsythe has been taking his audio/visual installation called Scattered Crowd around the world since 2002.
If you want to know what it feels like to walk among these stunningly arranged white bubbles of air then there is a chance to see them in 2013 at the Brockenheimer Depot in Frankfurt (Main) in German. Running from 21.3.-24.3.2013.
More info here: williamforsythe.de
As a little taster here is already a video from an earlier exhibition a few years back at the Saddler's Wells in London: