LBY4589839: The flag of Japan has an inflatable alveoilar structure. World Exhibition, Shanghai, Japan, 2010. The theme of the Japan Pavilion is “Harmony of the Heart, Harmony of Technology””. Rainwater is recycled for example in the staff toilets, air is sucked and redisseminated inside the pavilion, via specific vents. Photography 23/05/10 / Bridgeman Images