Embassy Row are also located in this quadrant. Transportation Northwest is bounded by the Potomac River on the west, Western Avenue and Eastern Avenue to the north, North Capitol Street to the east, and the National Mall to the south. Other principal roads include Connecticut Avenue between Chevy Chase and the White House, Wisconsin Avenue between Friendship Heights and Georgetown, Pennsylvania Avenue between Georgetown and the Capitol, K Street, Massachusetts Avenue (home to Embassy Row), and 16th Street. Northwest is served by all six lines of the Washington Metro: the Orange, Silver, Red, Blue, Yellow, and Green Lines. Many Metrobus lines run through the quadrant, as well as the DC Circulator. See also SW—Southwest, Washington, D.C. SE—Southeast, Washington, D.C. NE—Northeast, Washington, D.C. References .