Rank the most iconic locomotives from America's most prestigious railroad! The Pennsylvania Railroad operated some of the most legendary steam engines in history, from the workhorse K4 Pacifics that dominated passenger service to the experimental giants like the S1 and T1 duplexes. This collection features streamlined beauties, powerful Mikados, distinctive camelbacks, and everything from humble 4-4-0 Americans to the mighty Q2. Whether you admire raw power, elegant design, or historical significance, these PRR steam locomotives represent the golden age of American railroading. Compare classic wheel arrangements, debate streamlined versus traditional styling, and determine which engines truly deserve top-tier status in Pennsylvania Railroad history.