Over the past 50 years, the world's population has doubled, and there have been big changes in the ranking of the world's most populous countries. View Online | Subscribe Presented by: Special

There has been intermittent fighting in the Caucasus region for decades. But what is the area like beyond the conflict? This map takes a look. View Online | Subscribe Presented by: Special Report Now

The world's most surveilled cities contain hundreds of thousands of cameras. See where these cities are located in this infographic. View Online | Subscribe Presented by: Special Report Now