
"Ambitious engineering projects that have been left in ruins."
Abandoned Engineering
These are some of the most spectacular examples of abandoned engineering the world has ever known. The series explores how and why they were built, consider the financial and social costs of their failure and examine the environmental and ecological impacts. The series also explores how experts came up with plans to make something beautiful or useful from the ruins.
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S15 E12 • 2/11/2026
Churchill's Shadow War
Exploring a secret subterranean network in London that inspired James Bond author Ian Fleming, and an Italian country retreat that was designed to brainwash a generation of children.
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Seasons

Series 1
6 Episodes • 2017

Series 2
8 Episodes • 2018

Series 3
8 Episodes • 2019

Series 4
12 Episodes • 2019

Series 5
8 Episodes • 2020

Series 6
11 Episodes • 2020

Series 7
12 Episodes • 2021

Series 8
12 Episodes • 2021

Series 9
12 Episodes • 2022

Series 10
12 Episodes • 2022

Season 11
8 Episodes • 2023

Season 12
8 Episodes • 2023

Season 13
8 Episodes • 2024
Season 14
8 Episodes • 2025

Season 15
12 Episodes • 2025













