September 22nd, 2011
07:31 PM GMT
London (CNN) – The Chicago River started as a port for industry, helping the city's economy grow. But until recently, the river has been neglected, used as a dumping ground and filled with pollution and disease.
Now, Chicago is realizing the riverâ€™s potential, bringing it back to heath and developing it as a commercial asset by building a new river walk.
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