Trans-Siberian Railroad
Trans-Siberian Railroad
Trans-Siberian Railroad
The world's longest mountain system is known as Ocean Ridge, which is a chain of mountains that runs on the seafloor of five oceans around the world, the total length of the system is 49,700 miles. The Andes is the world's longest mountain system on the surface of a continent; it is 4,300 miles in length.
The Mammoth Cave system in Kentucky, USA, is the longest known cave system in the world, with over 400 miles of explored passageways.
The world's longest river system is the Nile-Kagera River system that flows in eastern Africa. There is some suggestion that the Amazon-Ucayali-Apurimac system in South America may be the largest.
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STS, short for Space Transportation System.
Please find a link to the official longest persons name in the world, in the related links feature below.
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The Nile River
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