Pennsylvania Railroad was created in 1846.
North Pennsylvania Railroad ended in 1976.
Railroad Museum of Pennsylvania was created in 1975.
Central Railroad of Pennsylvania was created in 1944.
Pennsylvania Northeastern Railroad was created in 2011.
Pennsylvania Railroad District was created in 1902.
Pennsylvania Railroad Station-Wilkinsburg was created in 1916.
Brilliant Cutoff Viaduct of the Pennsylvania Railroad was created in 1902.
Lima Pennsylvania Railroad Passenger Depot was created in 1887.
Oil City Pennsylvania Railroad Bridge was created in 1902.
Pennsylvania Railroad Bridge over Shavers Creek was created in 1889.
North River Railroad was created in 1881.
Metro-North Railroad was created in 1983.