They use infrastructure and industrial machinery so well! see the set of images here

La Fura dels Baus are a Catalan radical theatre group from Barcelona, 30 years of experimenting behind them. These images are from their latest show, Naumachia III, premiered on Spiller’s Quay, in Newcastle, in July 2007.
Naumachia is a huge, outdoor event. The hour long performance appeared from every where – from the boat ( the Naumon ) , from huge cranes suspending live singers and acrobats over the quay, the boat and the audience at dizzying height. Some 90 performers contributed to this amazing performance, many whom are local trained climbers, at heights of over 30 metres from the ground in a matrix of ropes, chains and equipment creating a human mesh of movement – at the same time that an enormous illuminated ball lights up with projected images of people, the earth, crawling with figures appearing through holes in the fabric surface, and manipulated by two 20 metre tall puppet like robotic figures made from fibre glass and metal struts, hanging from massive crane.
The boat Naumon is 70 metres long, painted orange, a retired icebreaker. This is the 20th show performed from this ship on a journey taking La Fura dels Baus over 10,000 nautical miles. Next stop Russia.
Here is their web site – www.lafura.com