How Did They Build That? S4E3 backdrop

How Did They Build That? (2021)

S4E3 Speedcore & Steambend

Aug 10, 2025 Season 4 Episode 3 Documentary

Episode Overview

How Did They Build That? poster

A library stretches across a railway line, its form echoing the drifting clouds above. In another corner of the city, a speed-core skyscraper rises at an astonishing pace, setting new records for construction. Then, a groundbreaking bridge is unveiled—its unique design inspired by a simple child's toy, forever changing the skyline.

How Did They Build That? poster
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