How Did They Build That? (2021)

Season 4

Explores some of the most incredible feats of engineering and features architectural wonders from all over the world.

Where to Watch Season 4

10 Episodes

  • Space Stations & Super Inventions
    E1
    Space Stations & Super InventionsLives are on the line creating the International Space Station, a scientific marvel a decade in the making, that changes the way we look at the world.
  • Medals & Marinas
    E2
    Medals & MarinasA floating museum honors military heroes in Texas. A sky-park casino balances on six towers. And an office is carved out to protect NYC's High Line.
  • Speedcore & Steambend
    E3
    Speedcore & SteambendA railway-spanning library mimics the clouds. A speed-core skyscraper is built in record time. And a world first bridge inspired by a child's toy.
  • High Waters & Harsh Winds
    E4
    High Waters & Harsh WindsApartments hanging 164 feet above the water defy gravity in Amsterdam. A trio of towers shimmer on Chicago's skyline, and museum design is revolutionized in Paris.
  • Ecobuilds & Earthquakes
    E5
    Ecobuilds & EarthquakesAn airport gets a 9 acre roof without stopping flights. A museum is buried in the desert to keep it cool. And building San Fran's most hated tower.
  • Sep 7
    E6
    Shipyards & Slender BuildsA 284ft timber tower tests fire safety limits. An old crane tracks is reborn as sleek glass offices. And 28 apartments are stacked on a 21ft plot.
  • Sep 14
    E7
    Summit & SubmergeA mountain-top centre defies extreme altitude. A stunning museum is sunk into an old dock. And a 600ft tower with floating gardens rises in Singapore.
  • Sep 21
    E8
    Facelifts & ScaffoldsA museum bends 1,100 glass tubes into a bold facade. A vast atrium rises where the Berlin Wall fell, and a NJ bridge is raised 65ft for huge tankers.
  • Sep 28
    E9
    Super Stadiums & Extraordinary ElevatorsA 70,000 seat stadium defies seismic forces in LA. Malta's 33 story tower twists around old vaults. And an 807ft elevator test tower spirals skywards.
  • Oct 5
    E10
    Floating Parks & Upcycled TowersSan Francisco's MOMA dramatically triples in size. A skyscraper transforms by smart demolition. And 5 acres of parkland floats above Dallas traffic.

Cast of Season 4

  • Jay EllisSelf - Host

 

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