A worker stands in the tunnel of the North-South subway line in Amsterdam on January 16, 2013. The new 'Line 52' was due for completion by 2012, but the project was reportedly delayed because of financial and structural reasons. Completion of Line 52 is now scheduled for 2017. The line will offer more direct journey possibilities as well as connections with Amsterdam Central Station.
ROBIN VAN LONKHUIJSEN, AFPGetty Images