The Pittsburgh Subway. On June 18, 2016, AMTK 10001 (Beech Grove) trailed on the "Farewell To The AEM-7" trip from Washington DC to Philadelphia. Before returning south, the train wyed at "Zoo", passing through this connection from the Northeast Corridor Line to the Keystone Line. In the modern era, this is the only Amtrak owned car with an open observation platform.
