By train
Union Station is the central train station for the whole city, and trains come and go primarily along the ACELA Northeast Corridor, although you can likely find a train heading in any direction, and the majority of them are owned by Amtrak.
Union Station is also the end point for the MARC Trains heading north through the Capital Region of Maryland to Baltimore. As the MARC serves primarily commuters, train departures and arrivals are concentrated at the beginning and end of the work day.
By bus
Routes #90, #92, and #93 (http://wmata.com/bus/time...) are the most useful routes hereâthey run along 8th St from Barracks Row, past Eastern Market, and then north along Florida Ave to U St.
#96 and #97 (http://wmata.com/bus/time...) run south from Union Station, right past the Capitol Building, then head east along E Capitol St. The former then heads south to the Congressional Cemetery, while the latter goes to RFK Stadium.
Coming from the Mall, #90, #92, #94, #95, and #96 head east along Independence Ave, and then down Pennsylvania Ave.
The D.C. Circulator' Union Station–Navy Yard Blue line runs M-F 6AM-6PM extended and weekend service on Nationals game days from Union Station, past the Capitol Building, Eastern Market, and Barracks Row, before heading south to Navy Yard.
By Metro
The Blue and Orange lines have stations just south of the Capitol Grounds at Federal Center and Capitol South. Further from the city center Eastern Market and then Stadium-Armory can be reached on the same line. The former is the most convenient stop for exploring the Capitol Hill neighborhood, as well as the eponymous market and Barracks Row. Stadium-Armory is closest to both RFK Stadium and the Congressional Cemetery.
The most prominent stop is certainly at Union Station, 40 Massachusetts Ave, ☎ +1 202 289-1908 on the Red Line, which is an easy walk from the Capitol, and is right by the train station.
By car
Street parking throughout Capitol Hill's side streets, once you get far enough east of the Capitol Building, and away from Eastern Market and Barracks Row, is usually not too hard to find. The traffic patterns are disastrously convoluted, thoughâeven by D.C. standards. Main east-west routes run along Constitution and Independence, as well as Pennsylvania and Maryland Ave. Coming from east of the river, the main bridges are at Pennsylvania Ave and E Capitol St. There are no main roads heading north-south throughout the area, only the complex diagonals.
RFK Stadium has big public lots, where you can actually park your car without having to sell your house, and it's a relatively easy drive from outside the city, as it's just off I-295/DC-295. The traffic, on the other hand, is properly a nightmare in about a square mile radius around the stadium during events.
Taxis are easy to catch around the clock in the western portion of this area, particularly around monuments and main dining strips, but you will not find them in the residential areas.