How Did They Build That? Show Summary, Upcoming Episodes and TV Guide

Visiting Australia's One Central Park, the Oslo Opera House, and the California Academy of Sciences in San Francisco to reveal their architectural secrets.

Travelling the globe to learn the engineering secrets behind various designs, such as the world's steepest mountain railway, a remodelled 145-year-old museum, and a futuristic condo.

Uncovering the design and engineering secrets behind the Grand Canyon Skywalk, the award-winning Audain Museum located in Whistler, British Columbia, and more.

Visiting the Hearst Tower in Manhattan and Jewel Changi Airport in Singapore to understand how they were built; covering how designers and engineers attempt to create a museum worthy of Salvador Dali in Florida.

Visiting the Hearst Tower in New York City, a 56,000-square-foot private museum named the Audain Museum in Vancouver, and Library Learning Centre in Vienna to learn about how they were built.

Across the globe, visionary architects and brilliant engineers are often asked to defy the odds--and sometimes gravity itself--in order to build something spectacular. This episode, we visit Singapore's Pinnacle@Duxton, featuring the world's longest sky gardens. Then we hit the beaches of Brighton to see how the 450-foot, ultra-slender i360 viewing tower survives the coastal winds. Finally, we head to Naples where a stunning new rail hub, the Napoli Afragola station, was built in the shadow of Vesuvius and in an earthquake zone.

What happened when one of the world's most radical architects tried to reinvent a 100-year-old fire station in Rotterdam's port area? How on Earth does an ultra-slim skyscraper, 88 stories high and just 30 yards across, stay standing up in windy Manhattan? And how did designers create a building that rises up out of Scotland's River Tay. Join us as we examine the feats of engineering that led to the truly out-of-this-world Port House, the gravity-defying 432 Park Avenue, and the revolutionary V&A Dundee museum.

How did engineers design a glass dome big enough to house a mountain? How did builders tear apart and reconstruct a London railway station without disrupting service? And how did legendary architect Frank Gehry make a big impression in Vegas, not with a casino but with a jaw-dropping hospital? Witness modern design at its most daring and ingenious as we visit Singapore's Gardens by the Bay, the London Bridge station, and the Lou Ruvo Center for Brain Health and reveal the stories and engineering secrets behind their construction.

A Manhattan skyscraper designed to appear as if gust of wind could topple it over. A Paris museum described as an engineer's 'jigsaw puzzle from hell,' with 3,500 individually designed glass panels. And a cliffside elevator in Zhangjiajie so remotely located, it had to be built entirely by hand. Join us as we travel the globe to witness astonishing structures that pushed architecture and the laws of physics to the edge. Then meet the brilliant minds who designed and built these wonders and discover the stories behind their construction.