displayed a number of historic locomotives and cars they had collected over the years. After the fair had ended, the PRR, decided to preserve the equipment that was displayed, along with various other locomotives and rolling stock. The equipment was stored away in a roundhouse in Northumberland, Pennsylvania, and looked after by employees. With the state looking to establish a railroad museum and PRR successor Penn Central looking to rid itself of the collection in the late 1960s, it was decided the museum was to be built directly next to the Strasburg Rail Road in Strasburg, Pennsylvania. The engines were moved to the Strasburg Rail Road, where they were stored while the museum was under construction. A large number of the Pennsylvania Railroad's Historic Collection was sent to Strasburg coupled together, forming the "Train of Trains." The Railroad Museum of Pennsylvania was officially opened to the public April 1, 1975. As the museum acquired more equipment, they required more space, so in 1995, Rolling Stock Hall was expanded by 55,000 square feet. Today, the museum covers 18 acres of land, including 100,000 square feet indoors. A roundhouse for the larger locomotives that are currently stored outside was planned for 2018 but had not broken ground as-of January 2019. In all, the museum holds roughly 100 pieces of rolling stock, some nearing 200 years old. Collection Locomotives The collection is made up of more than a hundred historic locomotives and cars, many of which are part of the historical collection of the Pennsylvania Railroad. Following the 1939-1940 New York World's Fair, the PRR placed many of their historic rolling stock aside for preservation. The collection was stored in a roundhouse in Northumberland, Pennsylvania. In 1969, the collection was relocated from Northumberland to Strasburg, where they were stored at the Strasburg Rail Road until the museum's completion in 1975. Some of these engines had operated on the Strasburg Railroad for a number of years before being put back on display. PRR 1223, famous for its use in the 1969 film Hello, Dolly!, and PRR 7002 (originally #8063), a re-creation of the famous original PRR #7002, which set an unofficial land speed record in 1905 by traveling at 127.1 miles per hour. Both were leased to the Strasburg Rail Road, and retired permanently in 1989. Other historic locomotives are featured at the museum, including the famous "Lindbergh Engine", PRR 460, which completed a