How Did They Build That?
Summit & Submerge (S04E07)
Perched at the edge of breathable air, a mountaintop research station pushes the limits of human endurance. Nearby, a breathtaking museum sinks sea...
S04E07
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Season 4 Episodes
S04E02 - Medals & Marinas
How Did They Build That?
S04E03 - Speedcore & Steambend
How Did They Build That?
S04E04 - High Waters & Harsh Winds
How Did They Build That?
S04E05 - Ecobuilds & Earthquakes
How Did They Build That?
S04E06 - Shipyards & Slender Builds
How Did They Build That?
S04E07 - Summit & Submerge
How Did They Build That?
S04E08 - Facelifts & Scaffolds
How Did They Build That?
S04E09 - Super Stadiums & Extraordinary Elevators
How Did They Build That?