The Blur Building is a media pavilion for Swiss EXPO 2002 at the base of Lake Neuchatel in Yverdon-les-Bains, Switzerland.
From piles in the water, a tensegrity system of rectilinear struts and diagonal rods cantilevers out over the lake. Ramps and walkways weave through the tensegrity system, some of them providing a counterweight for the structure. The form is based on the work of Buckminster Fuller.
The pavilion is made of filtered lake water shot as a fine mist through 13,000 fog nozzles creating an artificial cloud that measures 300 feet wide by 200 feet deep by 65 feet high. A built-in weather station controls fog output in response to shifting climatic conditions such as temperature, humidity, wind direction, and wind speed.