Watch Superstructures: Engineering Marvels

The Singapore National Stadium is an award-winning sports arena with the largest free-spanning dome in the world. It's a state-of-the-art building like no other. Using CGI and expert testimony, this episode takes the stadium apart to discover the innovations that, against the odds, turned the superstructure into an engineering masterpiece.

We take apart the GPO Amethyst, an ocean transporter capable of carrying some of the largest structures by deliberately sinking into the ocean.

The International Space Station is taken apart to uncover its engineering secrets.