21:40Seven Wonders of the Industrial WorldEpisode 7: Hoover DamBBC Two Duration: 50 minutes Sun 20th Feb 2005, 21:40 on BBC Two Wales (Analogue)Over one hundred people died when Frank Crowe tried to tame the Colorado River by building the Hoover Dam.GenresFactualScience & NatureSeriesSeven Wonders of the Industrial World Source: BBC Online