Top 100 Longest Metro (Subway) Systems Comparison (2019)

This video shows a comparison of the Top 100 longest metro (subway) systems in the world in 2019. Subway systems under construction are not displayed in this video. Twitter: https://twitter.com/wawamustats Facebook: https://fb.me/wawamustats Special Thanks to Our Patron: CMHansen Subscribe here: https://www.youtube.com/wawamustats?sub_confirmation=1