BJORN SVENSSON / SCIENCE PHOTO LIBRARY BJORN SVENSSON / SCIENCE PHOTO LIBRARY
Bamboo bridge. This bridge, rebuilt every year after the rainy season, goes from the mainland to an island in the Mekong river. It is said to be the longest bamboo bridge in the world. Due to its strength, bamboo is widely used as a building material. Photographed in Kampong Cham, Cambodia.
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