Top of the PRR By Angela Cotey | November 22, 2024 | Last updated on August 8, 2025 Email Newsletter Get the newest photos, videos, stories, and more from Trains.com brands. Sign-up for email today! Get Updates The pushers of two eastbound freight trains pass AR Tower in Gallitzin, Pa., summit of the Pennsylvania Railroad’s Pittsburgh–Philadelphia main line in 1956. The track above the tower loops from the westbound main tracks. Philip R. Hastings photo