Season 1 Episodes8
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Ranked #5 of 7 in Season 1•−0.1 vs season avg
Engineers are building a ground-breaking new railway line in Copenhagen that features 22 miles of tunnels, 17 brand-new stations, and cutting-edge driverless trains.
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"Super Tunnel" is episode 6 of Building Giants season 1. It scored 8.4/10 from 14 votes, ranking #5 of 7 episodes this season (season average 8.5). It aired on February 8, 2018.