If you ever visit us in GM, we will take you for a spin on the underground metro train system!  The system consists of two main lines serving 22 stations, and it is often the most efficient way to get around the city quickly.  While our city’s population is roughly 1.5 million, it is estimated that there are well over 100 million “metro rides” each year!  This video shows the view from the platform as we wait for the train to arrive (often one train every 5 minutes or so).