 The rail terminal and its ferry slips were the main New York City station for the railroad until the opening in 1910 of New York Pennsylvania Station, made possible by the construction of the North River Tunnels.It was one of the busiest stations in the world for much of the 19th century.The terminal was on Paulus Hook, which in 1812 became the landing of the first steam ferry service in the world, and to which rail service began in 1834.