Union Station Washington
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Washington Union Station is a major train station, transportation hub, and leisure destination in Washington, D.C. Opened in 1907, it is Amtrak 's headquarters and the railroad's second-busiest station with annual ridership of just under 5 million  and the ninth-busiest in overall passengers served in the United States. The station is the southern terminus of the Northeast Corridor , an electrified rail line extending north through major cities including Baltimore , Philadelphia , New York City , and Boston and the busiest passenger rail line in the nation.