Seven Wonders of the Industrial WorldEpisode 4: The LineBBC Two Duration: 50 minutesFirst broadcast: Thu 25th Sep 2003, 21:00 on BBC Two Northern Ireland (Analogue)Latest broadcast: Thu 23rd Dec 2004, 10:00 on BBC Two EnglandA drama-documentary about how two corporate giants raced to link the east and west coasts of America by rail.GenresFactualScience & NatureSeriesSeven Wonders of the Industrial World Source: BBC Online