Add Yahoo as a preferred source to see more of our stories on Google. Berlin police officers stand by the Sophie-Charlotte-Platz subway entrance after an attacker stabbed and fatally injured a man ...

Berlin is Germany's capital and largest city, with over 3.5 million people in around 344 square miles. Its public-transportation network is expansive and efficient, but can be tricky to navigate.

A day-long strike by Berlin's public transport workers on Monday caused major disruptions in the German capital, as most buses, trams and U-Bahn underground train lines stopped service. Transport ...