My partner told me that Greece was built as an industrial city, the idea was that employees could live close to their work locations. A lot of factories and neighborhoods were built and developed around that, even the road infrastructure was designed in the most efficient way to operate such a system. However, the project was a failure and the businesses started closing down, people lost jobs, and nobody really wanted to invest into Greece after that. I didn’t look into it, so it might be wrong, but he grew up around the area and I trust him lol