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第 季第 6 集1 - Tunnel Vision
2012年3月16日46 分鐘Return to the 57-kilometer long high-speed rail tunnel in Switzerland's Gotthard Mountain range to see what it will take to finish the project by 2017.免費觀看第 季第 6 集2 - Extreme Surf Machine
2012年3月23日46 分鐘Returning to Tenerife to check on the world's best water park which now seems destined to remain dry after numerous problems.免費觀看第 季第 6 集3 - Race to the Games
2012年3月30日46 分鐘Crews race against the clock to finish an important venue and signature landmark for the 2012 London Olympics.免費觀看第 季第 6 集4 - Tunneling Through History
2012年2月6日46 分鐘Mega Builders return to Istanbul to update the Marmaray rapid-transit project, which continues to have delays.免費觀看第 季第 6 集5 - Quake-Proof Bridge
2012年2月13日46 分鐘Six years after piles were pounded into the muddy bottom of San Francisco Bay the new Bay Bridge is about to be topped off.免費觀看第 季第 6 集6 - Ice Hotel: Bigger, Colder
2012年2月20日46 分鐘Inside a famous Swedish hotel which is constructed from 10,000 tonnes of ice and 30,000 tonnes of snow, and boasts a frozen bar and cinema screen.免費觀看第 季第 6 集7 - Best Of
2012年2月27日46 分鐘Mega Builders revisits previous covered projects and gives us an update to their progress.免費觀看
