4. Ford River Rouge Complex (USA)

The Ford River Rouge Complex in Michigan is an icon of American industrial history. Once employing over 100,000 workers, the complex today covers more than 600 acres.
Renowned for its vertically integrated manufacturing, the plant produces legendary vehicles like the Ford F-150 while continuously adapting to new technologies and sustainability standards.
The evolution of River Rouge reflects the broader story of American industry—innovation, resilience, and reinvention.
Source: Ford Motor Company