The Pentagon station is on the Yellow and Blue lines in Arlington. The station is a major commuter bus hub, with Metrobuses and Fairfax Connector buses ending their lines here so commuters can get on Metrorail.
The station is heavily used by the 23,000 employees of the Pentagon.
Last train departs: Huntington- 12:05 a.m. Mt. Vernon Sq-UDC- 11:49 p.m.
Addison Road- 11:52 p.m. Franconia-Springfield- 12:21 p.m.
(Trains leave exactly 2 hours later on Friday and Saturday nights.)