The Paris metro (in French, Paris Metro) is the rail transportation system Read more

The Madrid metro, officially known as “Madrid's Underground”, is the transportation system Read more

The Barcelona metro is officially known as “Barcelona Metro”, and it's a Read more

Tehran metro (“متروی تهران” in Persian) is the underground transportation system that Read more

The Wuppertal metro is located in Germany. It is not really considered a Read more

The Gelsenkirchen metro is located in Germany. It is not really considered a Read more

The Essen metro is located in Germany. It is not really considered a Read more

Duisburg metro (Duisburg in the German language) It is located in Germany. I don't know Read more

The Dortmund metro is located in Germany. It is not really considered a Read more