The longest river in the world is the Nile River in Africa, with the Amazon River in South America a close second. Following those rivers are the Yangtze River in China and the Mississippi-Missouri River system in North America.
The Nile River is central to trade within Egypt and spans a remarkable 4,160 miles. The Amazon River contains more water than any other river and cuts through 4,049 miles of land, mostly wild jungle. The Yangtze River in Asia measures 3,915 miles long. The Mississippi-Missouri River system, which runs for most of its length within the United States, covers 3,709 miles.