Loud, complicated, sprawling: The New York City subway is a national landmark as much as it is a transit system. From its 1904 inception, the New York City subway has grown into the largest unified transportation system in the Western Hemisphere -- one that includes more than 423 stations and 660 miles of track. But its breathtaking, and frequently overlooked, collection of signage -- from colorful mosaics to colored circles -- also offers fascinating insight into the popular conception of public transportation and the world in which we live. Today, the modern subway is dominated by the Helvetica … [continued ...]