Union Station opened in its current renovated form in 1988. It has a huge food court, other restaurants and many stores of all kinds. In addition (although perhaps this should be first) it is station for Amtrak trains in Washington DC. And of course Union Station is served by the red line of the Washington DC Metro.
Union Station is located at 50 Massachusetts Avenue, NE, Washington, DC 20002. Click Here for Google Map of Union Station.
Closest Metro Station: Not that this isn’t obvious, but the Union Station Metro Station on the Red Line is nearest to Union Station.