How Did They Build That? Season 4 Episode 3

How Did They Build That? Season 4 Episode 3 Speedcore & Steambend

  • August 10, 2025
  • 44 min

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.

Own from $1.99
Own Episode
Own from $1.99
Description
Watch How Did They Build That? - Speedcore & Steambend (s4 e3) Online - Watch online anytime: Buy, Rent
How Did They Build That?, Season 4 Episode 3, is available to watch and stream on Smithsonian Channel. You can also buy, rent How Did They Build That? on demand at Amazon, Google Play, Apple TV Store online.
  • First Aired
    August 10, 2025
  • Runtime
    44 min
  • Language
    English
View All Episodes
Stream Shows Like How Did They Build That?
Prehistoric Planet
Dateline
American Monster
Real Madrid: Until The End
20/20
48 Hours Mystery
Portrait Artist Of The Year
Messi's World Cup: The Rise Of A Legend
Dark Side Of The Ring
Ghost Adventures
Home
My 600-lb Life
Also on Smithsonian Channel
Aerial America
Hell Below
The Missing Evidence
The Real Jesus Of Nazareth
Secrets
Mighty Trains
Private Lives Of The Windsors
Secrets Unlocked
Catching Killers
WWII's Most Daring Raids
The Real Mad Men Of Advertising
History In HD