Paris, France - June 1, 2015: Metropolitain subway metro station, train rapidly passing by platform with cool neon lights Stock Photo - Alamy
LA Metro cuts down crime on its bus, rail systems by 17% in past 5 years - Daily Bruin
FILE--Visitors look at model metro trains on display during the METRO CHINA 2015 in Beijing, China, 17 November 2015. China's investment in metro Stock Photo - Alamy
I.O. Metro Spring 2015 Catalog by I.O. Metro - Issuu
PlanItMetro » Metro Unveils Final Silver Line Map
File:Metro Rail.jpg - Wikipedia
Arbatskaya Metro Station, Moscow, Russia, 2015 – Foster/White Gallery
Moscow Metro map by Ilya Birman
Transportation Department threatens D.C. Metro shutdown if safety doesn't improve
Manila Shopper: Metro Stores Home SALE: September 2015
Metro-North New York Train Crash: Witness the Aftermath | Time
The Metro in Rotterdam, Netherlands 2015 - YouTube
U.S. Senate: Metro Rail System Map
How METRO made bus service a priority and became a transit trendsetter | Kinder Institute for Urban Research | Rice University
File:Prague metro plan 2015.svg - Wikimedia Commons