Bregenzerwald is in a valley situated between Lake Constance and the Arlberg Mountain that was once completely covered in woods, thus the abundant wood cultures exist in the region. The IWCS visited Hittisau, where the renowned Women’s Museum, set up in a modern wooden building, locates. We visited the wooden houses designed and built by a local architecture Mr. Nenning, learned about the local’s philosophy of natural wood use, and saw how the people preserve old wooden bridges. The people in the region also put great efforts to develop sustainable green energy by operating a biomass plant that consumes wooden residue left after constructions and so on.