Is How Did They Build That? coming back?
How Did They Build That? (2021–present) on Smithsonian Channel
The answer: Between seasons — last episode October 5, 2025, no return date announced yet.
4seasons
38episodes
About How Did They Build That?
Across the globe, radical architects, ingenious engineers, and skilled builders are creating structures so outrageous, they defy logic...and often even gravity. From a Manhattan skyscraper that looks like a Jenga tower to a Singapore glass dome big enough to house a mountain to a high rise in Italy with a built-in forest, we examine the world's most extraordinary buildings, bridges, and lifts, reveal their design secrets, and discover the incredible stories of their construction as we try to answer the question: How Did They Build That?
How Did They Build That? episode schedule
38 aired
Aired · 38
| Date | Ep. | Title |
|---|---|---|
| October 5, 2025 | S4·E10 | Floating Parks & Upcycled Towers |
| September 28, 2025 | S4·E9 | Super Stadiums & Extraordinary Elevators |
| September 21, 2025 | S4·E8 | Facelifts & Scaffolds |
| September 14, 2025 | S4·E7 | Summit & Submerge |
| September 7, 2025 | S4·E6 | Shipyards & Slender Builds |
| August 24, 2025 | S4·E5 | Ecobuilds & Earthquakes |
| August 17, 2025 | S4·E4 | High Waters & Harsh Winds |
| August 10, 2025 | S4·E3 | Speedcore & Steambend |
| August 3, 2025 | S4·E2 | Medals & Marinas |
| July 27, 2025 | S4·E1 | Space Stations & Super Inventions |
| October 20, 2024 | S3·E10 | Boxes & Birds |
| October 13, 2024 | S3·E9 | Curved & Cables |
| October 6, 2024 | S3·E8 | Subways & Sightlines |
| September 29, 2024 | S3·E7 | Floating & Lifting |
| September 22, 2024 | S3·E6 | Tricks & Trains |
| September 15, 2024 | S3·E5 | Heights & Balance |
| September 8, 2024 | S3·E4 | Parking & Sparkling |
| September 1, 2024 | S3·E3 | Canyons & Curves |
| August 25, 2024 | S3·E2 | Jungles & Bricks |
| August 18, 2024 | S3·E1 | Fantastic & Futuristic |
| September 4, 2022 | S2·E9 | Mirrors & Marble |
| September 4, 2022 | S2·E10 | Radical & Resplendant |
| August 28, 2022 | S2·E8 | Breakthroughs & Bridges |
| August 21, 2022 | S2·E7 | Steep & Stunning |
| August 14, 2022 | S2·E6 | Upside Down & Under Sea |
| August 7, 2022 | S2·E5 | Skywalks & Suspensions |
| July 31, 2022 | S2·E4 | Elevated & Elegant |
| July 24, 2022 | S2·E3 | Retrofits & Airport Glitz |
| July 17, 2022 | S2·E2 | Swamps & Swagger |
| July 10, 2022 | S2·E1 | Riverparks & Artworks |
Show 8 earlier episodes
| February 28, 2021 | S1·E8 | Arctic Modules & Auditoria |
| February 21, 2021 | S1·E7 | Sky Gardens & Seismic Stations |
| February 14, 2021 | S1·E6 | Arches & Opera Houses |
| January 31, 2021 | S1·E5 | Supertalls & Firehouses |
| January 24, 2021 | S1·E4 | Viaducts & Hotels |
| January 17, 2021 | S1·E3 | Biomes & Rebuilds |
| January 10, 2021 | S1·E2 | Towers & Roofs |
| January 3, 2021 | S1·E1 | Cantilevers & Lifts |
