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- Season 6
- Episode 4
Tunneling Through History
Mega Builders - S6 - E4
Mega Builders return to Istanbul to update the Marmaray rapid-transit project, which continues to have delays.
Mega Builders: Season 6 - 6 Episode s
6x1 - Tunnel Vision
March 15, 2012
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.
6x2 - Extreme Surf Machine
March 22, 2012
Returning to Tenerife to check on the world's best water park which now seems destined to remain dry after numerous problems.
6x3 - Race to the Games
March 29, 2012
Crews race against the clock to finish an important venue and signature landmark for the 2012 London Olympics.
6x4 - Tunneling Through History
February 5, 2012
Mega Builders return to Istanbul to update the Marmaray rapid-transit project, which continues to have delays.
6x5 - Quake-Proof Bridge
February 12, 2012
Six years after piles were pounded into the muddy bottom of San Francisco Bay the new Bay Bridge is about to be topped off.
6x6 - Ice Hotel Bigger Colder
February 19, 2012
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.