INNOVATIVE SOLUTIONS IN THE WORLD WIDE EXHIBITIONS OF ARCHITECTURE - The concept of the pavilion The topic of the global exposition that will take place in Zaragoza, Spain in 2008 is - "Water and Sustainable Development". In order to represent our country effectively, besides a good architectural idea we need to introduce the topic of the exposition into the architectural volume. Therefore the concept of the Lithuanian pavilion is Rainbow. Lithuania is a rainy country covered with dew. It is green and wet, colorfully warm So the expo volume is a space created with the help of water and light. The idea is that the visitor is inside of the rainbow and can feel the nature - the absolute freedom. In the morning the visitors would step in the grass covered with dew with their bare feet and would move in the fog. At daytime the rainbow would be formed, in which the visitors would enjoy the spectrum of colors and relax.