The Madrid Metro, inaugurated in 1919, has grown into a sprawling network of 12 lines covering over 300 kilometers and more than 300 stations. Its coverage extends beyond the city center, reaching suburban areas and neighboring towns, making it an essential mode of transport for commuters and visitors.The metro is divided into different zones, each with its own fare structure, designe... https://www.nashvillenewspress.com/exploring-the-zonas-metro-de-madrid-a-guide-to-madrids-metro-zones