Here is a small part of the Metro that runs above ground, if you have seen the movie Subway (as its often called in english speaking parts of the world) starring Christopher Lambert, the actual metro these days is not as cool as that.
Camera Details: Canon, Canon PowerShot S90 Settings: 1/125 at f/2.2, ISO 80, 6 mm Date: 13 July 2010 Time: 03:50:47