When did Abandoned Engineering Season 5 Episode 4 air?
Abandoned Engineering Season 5 Episode 4 aired on February 11, 2020 at 8 PM GMT.


Ambitious engineering projects that have been left in ruins.
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.

A secretive underground base that concealed the power to destroy nations, and a sprawling industrial relic clinging to the edge of an unforgiving waterfall.
Direct answers for episode-level questions and details.
Abandoned Engineering Season 5 Episode 4 aired on February 11, 2020 at 8 PM GMT.
This episode runs for approximately 44 minutes.
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