How Did They Build That? - Season 4
1 - Space Stations & Super Inventions
Air Date: July 27, 2025
Lives 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.
2 - Medals & Marinas
Air Date: August 3, 2025
A 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.
3 - Speedcore & Steambend
Air Date: August 10, 2025
A 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.
4 - High Waters & Harsh Winds
Air Date: August 17, 2025
Apartments 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.
5 - Ecobuilds & Earthquakes
Air Date: August 24, 2025
An 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.
6 - Shipyards & Slender Builds
Air Date: September 7, 2025
A 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.
7 - Summit & Submerge
Air Date: September 14, 2025
A 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.
8 - Facelifts & Scaffolds
Air Date: September 21, 2025
A 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.
9 - Super Stadiums & Extraordinary Elevators
Air Date: September 28, 2025
A 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.
10 - Floating Parks & Upcycled Towers
Air Date: October 5, 2025
San Francisco's MOMA dramatically triples in size. A skyscraper transforms by smart demolition. And 5 acres of parkland floats above Dallas traffic.