From Dutch art group Observatorium, Warten auf den Fluss (Waiting for the River) is part architectural art exhibit, part environmental protection, designed to celebrate the rehabilitation of the Emscher River. Once considered biologically dead from years of waste materials, the river is expected to be in good health by 2020. The habitable bridge which will eventually overlook the river, is 125 feet long and includes enough space for long walks, naps, and picnics. 

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