Sinopsis(1)
Richard explores one of the world's biggest man-made engineering projects: the Kölnbrein Dam, which can hold back an incredible 200 million tonnes of water! (Discovery Networks)
Reparto
![Richard Hammond](http://image.pmgstatic.com/cache/resized/w88h116crop/files/images/creator/photos/000/279/279851_12b3f1.jpg)
Richard Hammond (guía)
Gran Bretaña
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