An art collective called Greyworld built a pretty keen eight story high kinetic sculpture called The Source at the new London Stock Exchange.
It's comprised of a grid of cables arranged in a square, with nine spheres on each cable. The spheres slide freely up and down their cables to arrange images such as a sunrise, the names and values of stocks, and up- or down-pointing arrows to show market trends.
The Greyworld site imposes on you elevator music and the sound of waves on shore. Because Greyworld knows better than you what music you'd like your computer to play right now.
