Largest Metro Systems You Want to Visit

New York City Subway

Probably the most well known metro in the world when it comes to the number of stations, New York City has them all beat with 421. Unlike some of its Asian counterparts however, it has a bit less track with only 209 miles. With 421 stations – the famous subway of NYC opened in 1904, it’s also one of the oldest (8th oldest to be exact). The NYC subway has a total length of 373 km (232 mi) – that’s 4th in the world, and a whooping 1.7 billion riders as to 2013.