Pennsylvania Station (often abbreviated Penn Station) is a name applied by the Pennsylvania Railroad (PRR) to several of its grand passenger terminals. Several are still in active use by Amtrak and other transportation services; others have been demolished. In the early 20th century, different railroad companies typically built separate stations, especially in major cities or towns, so the stations usually took the name of the companies. If various railroads cooperated to use the same station, the combined depot often took the name Union Station. Baltimore Baltimore, Maryland's Union Station was renamed Penn Station on August 1, 1928. Amtrak Northeast Corridor intercity service and MARC commuter service still operate through the station; the station is also served by a spur of the Baltimore Light Rail. Although bearing the full name Pennsylvania Station, it is typically referred to simply as Penn Station in nearly all situations. Cincinnati The PRR station in Cincinnati, Ohio, at Pearl and Butler Streets, built in 1880, was named Pennsylvania Station. It was supplanted with the opening of Cincinnati Union Terminal in 1933. Cleveland Cleveland, Ohio's old Lakefront Union Depot was renamed Penn Station on April 28, 1946. It was last used September 27, 1953, and service was cut back the next day to Euclid Avenue. Harrisburg Harrisburg, Pennsylvania's Union Station was also known as Penn Station. It was built in 1887 and rebuilt in 1905. It was shared by Reading Railroad, Northern Central Railway, and the Cumberland Valley Railroad, until the Reading Railroad built a separate station in Harrisburg. Today it has the name Harrisburg Transportation Center and serves Amtrak's Keystone Service and Pennsylvanian intercity lines, along with Greyhound, Trailways, and local bus services. Jersey City Pennsylvania Railroad Station in Jersey City, New Jersey, opened in 1834, was the terminus for New York City market trains prior to the construction of the North River Tunnels under the Hudson River and the Pennsylvania Station in New York City. In the 1920s, the station took on the name Exchange Place, in contrast to the main station across the Hudson River. Train service to the station ended in November 1961 and demolition of the complex was completed in 1963. Newark Newark, New Jersey's Penn Station opened in 1935, replacing a smaller structure. It now serves NJ Transit trains, buses and Newark Light Rail, Amtrak Northeast Corridor and other intercity trains, PATH trains to Jersey City/Lower Manhattan and Greyhound buses. New