Another invisible line is the Qinling-Huaihe line, which separates China into two distinct regions: the humid and subtropical south and the dry, temperate north.

Britain and its Empire lost almost a million men during World War One; most of them died on the Western Front. Stretching 440 miles from the Swiss border to the North Sea, the line of trenches ...

Image caption, Maps of the world showing different time zones. The International Date Line is the vertical wriggly yellow line on the right. The International Date Line (IDL) is an imaginary line ...

The line would cost between £430,000,000 and £610,000,000, according to 2021 TfL estimates. Passengers travelling between west and northwest London would no longer have to make a hook to central ...