Transportation
Record Breaking Metro System of the Day: Beijing
With an end-of-year expansion, it is now the world's longest subway system.
A new year, a new world's largest metro system.
On December 30th, Beijing opened 43.4 miles of track, including one brand-new line, making its metro system the longest in the world. The Chinese capital now has 275 miles of track; the previous record-holder, Shanghai, has 272.