And yet here, in a book published in 1507, were references to a large world map that showed a new, fourth part of the world and called it America. The references were tantalizing, but for those ...

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 ...

Less than a month after the September 11 terrorist attacks on the United States, U.S. troops—with support from British, Canadian, French, German and Australian forces—invaded Afghanistan to ...

Explore what the world’s new coastlines would look like. 8 min read This story appears in the September 2013 issue of National Geographic magazine. The maps here show the world as it is now ...

Glaciers are melting faster than ever. As the planet gets hotter, our frozen world is shrinking, making the water cycle more unpredictable. For billions of people, meltwater flows are changing ...