Arty-farty. In the midst of the Woods in the Netherlands there is an outdoor museum called Kröller-Möller. In the gardens, or just the Woods there are plenty of statues and other creations to be found. This one is called the Needle Tower II, is 28 meters high and made by Kenneth Snelson. It is based on the fundamentals of pulling and pushing forces (tensegrity). Remove one cable or needle and it will collapse. Well, having been there, it looks quite awesome and it is amazing that it can remain standing. More info at www.kmm.nl