How Did They Build That?

Wednesday, February 11

Heights & Balance

Season 3 • Episode 5

A 1.2 million square foot office building balances precariously on a 39-foot wide base in Chicago.

Wednesday, February 11

Super Stadiums & Extraordinary Elevators

Season 4 • Episode 9

Examine the sightlines in Los Angeles's SoFi Stadium, which sits right in the flight path of LAX.

Wednesday, February 11

Fantastic & Futuristic

Season 3 • Episode 1

A building inspired by a mountain valley; a launchpad for space travel prepares for liftoff.

Wednesday, February 11

Subways & Sightlines

Season 3 • Episode 8

A sculptural high-rise with rippling balconies; Mammoth machines bore 26 miles of tunnels.

Wednesday, February 11

Mirrors & Marble

Season 2 • Episode 9

Revealing the architectural secrets of Australia's One Central Park, the Oslo Opera House and more.

Wednesday, February 11

Cantilevers & Lifts

Season 1 • Episode 1

An unstable high rise, an otherworldly museum, and a towering cliffside elevator.

Wednesday, February 11

Ecobuilds & Earthquakes

Season 4 • Episode 5

A 9,000 ton timber roof is built without stopping flights at Portland International Airport.

Wednesday, February 11

High Waters & Harsh Winds

Season 4 • Episode 4

Defy gravity in an Amsterdam high-rise; marvel at three interconnected towers in Chicago.

Wednesday, February 11

Space Stations and Super

Season 4 • Episode 1

Learn how astronauts constructed the ISS while circling the Earth at 17,500 miles per hour.

Wednesday, February 11

Floating Parks & Upcycled Towers

Season 4 • Episode 10

A 1970s Sydney skyscraper is recycled into a 21st century tower; in Dallas, a park is created.

Wednesday, February 11

Biomes & Rebuilds

Season 1 • Episode 3

A London railway station; giant Singapore biodomes; eye-catching hospital in Las Vegas.

Wednesday, February 18

Breakthroughs & Bridges

Season 2 • Episode 8

Visiting Gherkin, Evergreen Point Floating Bridge and Musée des Confluences for their origins.

Wednesday, February 18

Swamps & Swagger

Season 2 • Episode 2

The design and construction of revolutionary buildings in Spain, New York and Florida.

Wednesday, February 18

Towers & Roofs

Season 1 • Episode 2

A Manhattan high-rise; an Athens cultural center; a Singapore university.

Wednesday, February 18

Riverparks & Artworks

Season 2 • Episode 1

Visiting Little Island, the Denver Museum of Art and La Tête Carrée to reveal how they were built.

Wednesday, February 18

Upside Down & Under Sea

Season 2 • Episode 6

Visiting the Vancouver House, Norway's Under restaurant and the Seattle Central Library.

Wednesday, February 18

Viaducts & Hotels

Season 1 • Episode 4

A towering bridge in France; upside-down hotel in China; Italy's forest into the sky.

Wednesday, February 18

Jungles & Bricks

Season 3 • Episode 2

Wednesday, February 18

Canyons & Curves

Season 3 • Episode 3

Engineers grapple with an apartment building; the Gateway Arch takes shape in St. Louis.

Wednesday, February 18

Floating & Lifting

Season 3 • Episode 7

Architects and engineers build an eco-friendly convention center on Vancouver's waterfront.

Wednesday, February 18

Parking & Sparkling

Season 3 • Episode 4

A 1400-foot tapering skyscraper is built right next to New York's Grand Central.

Wednesday, February 18

Sky Gardens & Seismic Stations

Season 1 • Episode 7

A massive sky garden in Singapore, a tower in Brighton, and a railway station in Vesuvius.

Wednesday, February 25

Tricks & Trains

Season 3 • Episode 6

An Olympic and Paralympic museum tests engineers; a curved glass skyscraper battles gravity.

Wednesday, February 25

Steep & Stunning

Season 2 • Episode 7

The world's steepest mountain railway, a remodeled 145-year-old museum and a futuristic condo.

Wednesday, February 25

Summit & Submerge

Season 4 • Episode 7

Building an eco-friendly visitor center in the permafrost on Colorado's Pikes Peak tests the team.

Wednesday, February 25

Elevated & Elegant

Season 2 • Episode 4

Traveling from Canada to Belgium and to the U.S. to examine a school, museum and railway station.

Wednesday, February 25

Skywalks & Suspensions

Season 2 • Episode 5

The design and engineering secrets behind the Grand Canyon Skywalk, Audain Museum and more.

Wednesday, February 25

Arches & Opera Houses

Season 1 • Episode 6

The inside stories behind a horseshoe-shaped complex in Rotterdam and a rock-shaped opera house.

Wednesday, February 25

Facelifts & Scaffolds

Season 4 • Episode 8

A museum building bends 1,100-glass tubes to form a facade and tunnels below the water table.

Wednesday, February 25

Boxes & Birds

Season 3 • Episode 10

The American Museum of Natural History gets a cave-like extension; Boston University gains a tower.

Wednesday, February 25

Supertalls & Firehouses

Season 1 • Episode 5

Alien port authority in Belgium; ultrathin skyscraper in Manhattan; hanging museum in Scotland.

Wednesday, February 25

Curved & Cables

Season 3 • Episode 9

A new performance center with a tent-like glass-and-steel lobby tests engineers in Kansas City.

Wednesday, February 25

Radical & Resplendent

Season 2 • Episode 10

Exploring the design and engineering stories behind D.C.'s Museum of African American History.