Season 4 poster

Season 4

29 episodes May 17, 2007

Episodes

1 Ultimate Structures: Super Copter May 17, 2007 No ratings 2 Dubai's Dream Palace (Worlds Tallest Hotel) Jul 9, 2007 No ratings 3 Smart Tunnel Jul 14, 2007 No ratings 4 Queen Mary 2 Jul 16, 2007 No ratings 5 Hawaii Superferry Aug 26, 2008 No ratings 6 South Pole Station Nov 6, 2007 No ratings 8 Episode 8 May 20, 2008 No ratings 9 Deep Ocean Port (China's Ultimate Port) May 27, 2008 No ratings 10 Episode 10 May 29, 2008 No ratings 11 The World's Biggest Cruiseliner Jun 4, 2008 No ratings 12 Beijing Olympic Stadium Aug 5, 2008 No ratings 13 Episode 13 No ratings 14 Episode 14 No ratings 15 Future Trains Feb 7, 2012 No ratings 16 Building the World Jul 23, 2007 No ratings 17 Episode 17 No ratings 18 Building Green Beijing No ratings 19 Atom Smasher Jul 31, 2008 No ratings 20 Megabridges: China No ratings 21 Ultimate Structures: Super Sub No ratings 22 Sun Engine No ratings 23 Super Pipeline No ratings 24 Hawaii Superferry Aug 26, 2007 No ratings 25 Extreme Alaska No ratings 26 World Trade Center Bahrain No ratings 27 The World's Biggest Shredder No ratings 28 Impossible Hotels: Dubai No ratings 31 Building Green Beijing Nov 30, 2011 No ratings 107 Episode 107 May 16, 2008 No ratings