How Did They Build That?

Beautiful, audacious and extraordinary, this episode shows engineering on a scale and complexity never seen before. And this engineering is guaranteed to take your breath away.

Discover how engineers bent two Manhattan skyscrapers and then connected them with a sky bridge 700 feet in the air, and in Greece the 10,000 square foot canopy designed to withstand hurricane winds on a building engineered to survive earthquakes.

We visit Singapore to reveal the engineering secrets of the world's largest glasshouse roof and its forest of tropical trees. And in scorching hot Las Vegas we learn what happens when a man has a dream to build a hospital that makes a big impression.

We visit an extraordinary bridge that spans a vast valley and becomes the tallest in the world, a luxury hotel was built upside down in an abandoned quarry in China, and what happens when you build a forest in the sky in the middle of a city.

Discover how engineers built Zaha Hadid's Antwerp Port House, find out how 432 Park Avenue New York was built, and marvel at Kengo Kuma's Victoria and Albert Museum in Dundee, Scotland.

In Rotterdam, Dutch engineers build a huge arched building. In Guangzhou, China, Zaha Hadid's fantastical designs for an Opera House become reality.

In Singapore, The Pinnacle at Duxton is a stunning seven tower, 50 storey, apartment complex. In Brighton the i360 forced engineers to think outside the box, and in Naples, Italy, a new rail hub takes shape under the shadow of Mount Vesuvius.

Follow along as a team of engineers build a futuristic research station in one of the world's most extreme climates.