Workers install rails in the tunnel of Metro Line 7 on March 17, 2009 in Shanghai, China. Contruction on Line 7, which will run past the 2010 World...
Mayor of Berlin Michael Mueller and Sigrid Nikutta, CEO Berliner Verkehrsbetriebe BVG attend the tunnel breakthrough in Underground Metro Tunnel U5...
Workers stand in Underground Metro Tunnel U5 during a tunnel breakthrough on March 22, 2017 in Berlin, Germany. U5 is a line on the Berlin U-Bahn...
Workers stand in Underground Metro Tunnel U5 during a tunnel breakthrough on March 22, 2017 in Berlin, Germany. U5 is a line on the Berlin U-Bahn...
Workers stand in Underground Metro Tunnel U5 during a tunnel breakthrough on March 22, 2017 in Berlin, Germany. U5 is a line on the Berlin U-Bahn...
Workers stand in Underground Metro Tunnel U5 during a tunnel breakthrough on March 22, 2017 in Berlin, Germany. U5 is a line on the Berlin U-Bahn...
Metro station Brandenburger Tor U5 is pictured on March 22, 2017 in Berlin, Germany. U5 is a line on the Berlin U-Bahn which now runs from the...
Sigrid Nikutta, CEO Berliner Verkehrsbetriebe BVG attends the tunnel breakthrough in Underground Metro Tunnel U5 on March 22, 2017 in Berlin,...
Mayor of Berlin Michael Mueller and Sigrid Nikutta, CEO Berliner Verkehrsbetriebe BVG wait for the tunnel breakthrough in Underground Metro Tunnel U5...
Workers stand in Underground Metro Tunnel U5 during a tunnel breakthrough on March 22, 2017 in Berlin, Germany. U5 is a line on the Berlin U-Bahn...
Mayor of Berlin Michael Mueller , Sigrid Nikutta, CEO Berliner Verkehrsbetriebe BVG and workers attend the tunnel breakthrough in Underground Metro...
Workers install rails in the tunnel of Metro Line 7 on March 17, 2009 in Shanghai, China. Contruction on Line 7, which will run past the 2010 World...