1. 18 Mar


    A man walks under elevated tracks of the Beijing Subway in Beijing, China, on March 8. Photograph by Tomohiro Ohsumi/Bloomberg

    A man walks under elevated tracks of the Beijing Subway in Beijing, China, on March 8.

    Photograph by Tomohiro Ohsumi/Bloomberg

     

  2. 4 Jul


    A man uses a mobile phone as he rides the subway in Seoul, on June 24. Photograph by SeongJoon Cho/Bloomberg

    A man uses a mobile phone as he rides the subway in Seoul, on June 24.

    Photograph by SeongJoon Cho/Bloomberg

     

  3. 16 Feb


    A commuter waits on the platform for a subway train in Mexico City, Mexico, on Monday, Jan. 30. Photograph Susana Gonzalez/Bloomberg

    A commuter waits on the platform for a subway train in Mexico City, Mexico, on Monday, Jan. 30.

    Photograph Susana Gonzalez/Bloomberg

     

  4. 12 Feb


    A Mexico City Metro employee performs maintenance on a subway train in Mexico City, Mexico, on Tuesday, Jan. 31. Photograph by Susana Gonzalez/Bloomberg

    A Mexico City Metro employee performs maintenance on a subway train in Mexico City, Mexico, on Tuesday, Jan. 31.

    Photograph by Susana Gonzalez/Bloomberg