Train Teaser

[_josie_]

How do London Underground get their trains down to the very deepest underground lines (i.e. Northen Line)? is there a special type of lift for trains or do the lines emerge overground eventually?

[incitatus]

they all come to the surface at some point.

[RobSalt]

well not all of the london underground is actually underground.....each end of the lines the track comes outside hence put the trains on and "drive" them down the underground.......