William D. Middleton is the author of Landmarks on the Iron Road: Two Centuries of North American Railroad Engineering (Indiana University Press, 1999). “ They’re Still There ” will appear as an occasional feature in Invention & Technology .
THE LEGENDARY NEW YORK RAILROAD STATION , demolished in 1963, was but the visible capstone of a massive complex of tunnels, bridges, yards, and switching systems that brought together the city’s railroad lines and connected them to the world—and that still thrives today Read >>