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Step aboard the little-known subway line below Capitol Hill that lawmakers use to get around

Business Insider Logo By Joe Perticone of Business Insider | Slide 1 of 21: 
  The United States Senate has an underground tunnel for
  lawmakers to quickly get to votes from the adjacent office
  buildings.
  
  There are two train lines connecting three Senate office
  buildings to the US Capitol building, and one line on the House
  side.
  
  The train's drop-off location is where some of the biggest
  on-the-record conversations happen between senators and the
  press.
  

  The United States Senate has its own subway system to quickly
  transport lawmakers to and from votes without having to cross
  multiple checkpoints or brave the sometimes harsh weather above
  ground in Washington.

  The trains from the Russell Senate office building and the
  Rayburn House office building each have conductors, while the
  monorail that links the Dirksen and Hart Senate office buildings
  run on an automatic system.

  While mostly frequented by lawmakers, the trains are for anyone
  to ride as long as they are cleared to enter the Capitol.

  • The United States Senate has an underground tunnel for lawmakers to quickly get to votes from the adjacent office buildings.
  • There are two train lines connecting three Senate office buildings to the US Capitol building, and one line on the House side.
  • The train's drop-off location is where some of the biggest on-the-record conversations happen between senators and the press.

The United States Senate has its own subway system to quickly transport lawmakers to and from votes without having to cross multiple checkpoints or brave the sometimes harsh weather above ground in Washington.

The trains from the Russell Senate office building and the Rayburn House office building each have conductors, while the monorail that links the Dirksen and Hart Senate office buildings run on an automatic system.

While mostly frequented by lawmakers, the trains are for anyone to ride as long as they are cleared to enter the Capitol.

© Chip Somodevilla/Getty Images

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