This giant installation was set up outside the Guggenheim Museum Bilbao between August 2003 and April 2004. It is the work of Japanese artist Hiro Yamagata and consists of two gigantic rectangular structures composed of holographic panels onto which laser beams were projected.
The aim of this project was to push the limits of human perception and to try and show the naked eye what it cannot see, such as the light particles of the laser beams as they were projected on the panels. I think the scale of this project is what makes it really successful and I wish I could have seen it while it was on. I probably would have watched the changing colors for hours actually; so hopefully something similar will be coming up in the near future.