

2 votes
2021–
5 seasons
~43m/ep
An exploration of how some of the world's biggest man-made structures were built.
Season 1
8 episodes · 2021
Season 2
10 episodes · 2022
Season 3
10 episodes · 2024
Season 4
10 episodes · 2025
Season 5
7 episodes · 2026
Status
Returning Series
First aired
January 3, 2021
Last aired
July 27, 2026
Seasons
5
Episodes
39
Networks
Smithsonian Channel
Language
English

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