On the platform level, Moving the Millions: New York City's Subways from its Origins to the Present provides visitors with an overview of the magnitude and complexity of New York City's rapid transit system. The exhibition uses historical photographs, diagrams, cartoons, period maps, and newspaper clippings to illustrate major issues and events that influenced the development of the largest transportation network in North America. While touring Moving the Millions, museum visitors may board the Museum's vintage collection of subway and elevated trains and visit a working signal tower.