The Barcelona and Madrid metro networks are among the most extensive and busiest in Europe. Every day, tens of thousands of people move underground through these two cities, helping to decongest road traffic and reduce emissions. However, behind this apparent normality that passes between the almost 500 kilometers of tracks that both networks add up, an intriguing mystery is hidden that surrounds the 'ghost' stations that are hidden underground.
In both the Barcelona and Madrid metro we find a series of abandoned stations, which have remained intact for decades. Some of them were in use in the past, forming an active part of the underground transportation network, while others, on the other hand, were planned, but were never used.
Next, we delve into those stations that were abandoned in their day to reveal some details about each of them. Five of these unique spaces, which arouse the curiosity of numerous users, are part of the Barcelona metro network (Fernando, Correos, Banco, Bordeta and Gaudí) and only one of Madrid's (Chamberí).
