How Did They Build That

Discover the engineering secrets of a New York skyscraper that defies the laws of physics, a 1,000-foot glass elevator built by hand onto the side of a Chinese mountain, and an impossible architectural puzzle in Paris.

Marvel at engineers’ ingenuity while getting an inside look at two bent N.Y. towers connected by a sky bridge, a 10,000-square-foot canopy in Greece strong enough to withstand hurricane winds, and a cornerless building in Singapore that cools itself.

Wonder at the engineering efforts that created the world’s largest glass roof (which houses a forest of tropical supertrees), watch a major railway station rebuilt during rush hour, and see the creation of the most outrageous structure in Las Vegas.

Uncover how innovative engineers and architects built a stunning viaduct across a beautiful French valley, an extraordinary upside-down hotel in a Chinese quarry, and a forest on top of Italian highrises on a busy suburban train line.

Experience building in the extreme as a radical architect reinvents an ancient Dutch fire station, engineers keep the thinnest skyscraper standing, and Scotland’s wild coast gets a structure that would have been impossible just 10 years ago.

Find the whimsy in architectural feats of engineering, including a giant arch full of apartments built on top of a swamp, a rock-shaped opera house in China, and a British Library roof composed of 1,500 unique glass pieces.

Learn how architects and engineers defy the odds, and sometimes nature, to produce astonishing structures, including the world’s longest sky gardens, a pier in the clouds, and a railway station that laughs in the face of natural disasters.

Watch engineers overcome extreme climates and technical challenges to create pioneering designs, including an Antarctic research centre that can relocate when danger looms, the world’s first revolving boat lift, and a gravity-defying concert hall.