Puertollano, Spain

This former coal mining town is an industrial powerhouse, with a population of 45,565 as of 2022. Contrasting with the rural character of the surrounding region, Puertollano stands out for its heavy industry, including petrochemicals, fertilizers, and power generation. However, the city's history of mining has left a mark, as the decline of the coal industry has required significant government aid to diversify the economy. Bureaucracy is a persistent headache for residents, with the city's rapid growth from a small town to a major industrial center. Ultimately, Puertollano is best suited for those seeking employment in its manufacturing and energy sectors, rather than a tranquil Spanish idyll.