Mekong River in China

10 Most Famous Rivers In The World

Rivers built the world we live on. They carved the valleys, fed the first cities, carried the first traders, and still supply the water, food, and power that keep billions of people going. A handful, though, loom larger in the imagination than the rest, whether for their sheer size, their sacred status, or the civilizations they raised. These are ten of the most famous rivers on Earth, and the outsized stories behind them.

The Amazon

The Amazon River winding through dense rainforest.
The Amazon River snaking its way through the dense Amazon Rainforest.

No river on Earth moves more water than the Amazon, and it is not close. It pours roughly 209,000 cubic meters of water every second into the Atlantic, more than the next seven largest rivers combined, and accounts for something like a fifth of all the freshwater reaching the world's oceans. Winding about 6,400 kilometers out of the Peruvian Andes and across Peru, Colombia, and Brazil, it also rivals the Nile for the title of longest river, a dispute that reignites every few years as expeditions remeasure its source. The Amazon runs so wide and wild that not one bridge crosses its main channel along its entire length, and its basin shelters the densest concentration of life on the planet, with more than 3,000 known fish species alone.

The Nile

The Nile River at Aswan, Egypt.
The Nile River in Aswan.

The Nile is the river most often crowned the world's longest, threading about 6,650 kilometers north through eleven countries before spilling into the Mediterranean Sea. It runs backwards from what most people expect, flowing south to north, and it draws on two great tributaries: the White Nile, rising near Lake Victoria, and the Blue Nile, tumbling out of the Ethiopian highlands, which meet at Khartoum. But the Nile's real fame is what it made possible. Cutting a thin green ribbon through the deserts of Egypt and Sudan, it was the lifeline that fed ancient Egyptian civilization, watering crops and enriching the soil in a land that otherwise saw almost no rain.

The Ganges

The city of Varanasi on the banks of the Ganges River.
The Indian city of Varanasi on the banks of the Ganges River. Editorial credit: Roop_Dey / Shutterstock.com

The Ganges flows some 2,500 kilometers across northern India and into Bangladesh, but its importance has never been measured in kilometers. To hundreds of millions of people it is the holiest river in Hinduism, worshipped as the living goddess Ganga, said in myth to be the daughter of Himavan, lord of the Himalayas. Along its banks, whole cities are built around the water: pilgrims bathe in it to wash away sin, families cremate their dead on the riverside ghats of Varanasi, and daily life folds constantly back toward the river. Few waterways anywhere are so completely woven into a culture.

The Mississippi

The Mississippi River at New Orleans.
New Orleans on the banks of the Mississippi River.

The Mississippi is North America's second-longest river, running about 3,770 kilometers from a modest outlet at Lake Itasca in Minnesota down to the Gulf of Mexico. Only its own tributary, the Missouri, is longer. Along the way it borders or crosses ten states: Minnesota, Wisconsin, Iowa, Illinois, Missouri, Kentucky, Tennessee, Arkansas, Mississippi, and Louisiana. It is one of the busiest commercial waterways on Earth and the spine of a shipping industry worth hundreds of billions of dollars, but it is also a wildlife superhighway, with roughly 40 percent of North America's migratory birds funneling along the Mississippi Flyway. And it looms just as large in the American imagination, the river Mark Twain turned into the backdrop for Tom Sawyer and Huckleberry Finn.

The Thames

The River Thames flowing through London.
London on the banks of the Thames River.

The River Thames winds 346 kilometers through southern England and the middle of London before draining into the North Sea. It is the longest river lying entirely within England; the Severn is longer, but it strays into Wales. For two thousand years the Thames has been London's front door. The Romans, who founded the city, called it Tamesis, and for centuries traders sailed in from the North Sea and the English Channel beyond to unload at its wharves. Today its banks read like a checklist of London itself, with the Tower of London, Tower Bridge, and the Houses of Parliament all standing at the water's edge. Once one of the most polluted rivers in Europe, it now counts among the cleanest running through any major city.

The Murray River

The Murray River in southeastern Australia.
The Murray River in Australia.

The Murray is Australia's longest river, running 2,508 kilometers out of the Australian Alps, tracing the border between New South Wales and Victoria, and finally emptying into the Southern Ocean in South Australia. Nearly 2,000 kilometers of it are navigable, making it the third-longest navigable river in the world, behind only the Amazon and the Nile. In a famously dry country, that water is precious. The Murray supplies roughly 1.5 million households and feeds a basin that grows the lion's share of Australia's fruit, including around 95 percent of its oranges.

The Orinoco River

The Orinoco River in Venezuela.
The Orinoco River in Venezuela.

The Orinoco loops about 2,140 kilometers through Venezuela and along the edge of Colombia in a giant arc, and for all its relative obscurity it ranks as the fourth-largest river in the world by discharge. One of its strangest features is the Casiquiare, a natural channel that branches off and links the Orinoco to the Amazon basin, one of the only places on Earth where two major river systems join hands. Its waters teem with life found almost nowhere else, including the critically endangered Orinoco crocodile, river dolphins, giant otters, green anacondas, and more than a thousand species of fish.

The Saint Lawrence River

The Saint Lawrence River at Montreal, Canada.
Saint Lawrence River in Montreal, Canada.

The Saint Lawrence is the great drain of the Great Lakes, carrying their combined outflow northeast through eastern Canada and into the Atlantic Ocean. It is the primary outlet for the largest system of freshwater lakes on the planet, and North America's second-largest river by discharge. Historically it was France's doorway into the continent, the route Jacques Cartier and the explorers who followed him took inland, and the cities that grew along it, Montreal and Quebec City among them, still trace their roots to that traffic. Today the St. Lawrence Seaway lets oceangoing ships sail deep into the interior, while the river's wide estuary hosts belugas and even the occasional blue whale.

The Danube River

The Danube River flowing past Budapest, Hungary.
The Danube River flowing past the city of Budapest, Hungary.

The Danube is Europe's second-longest river, after the Volga, but it may be the most international waterway on the planet. Over its roughly 2,850 kilometers it touches ten countries, more than any other river on Earth: Germany, Austria, Slovakia, Hungary, Croatia, Serbia, Romania, Bulgaria, Moldova, and Ukraine. For centuries it has been a highway for trade and empire, and it still carries freight, generates hydroelectric power, and supplies water to the cities strung along it. It also runs through more national capitals than any river in the world, sliding past Vienna, Bratislava, Budapest, and Belgrade.

The Mekong River

Fishermen casting nets on the Mekong River.
Fishermen throwing their fishing nets into the waters of the Mekong River.

The Mekong tumbles some 4,350 kilometers from the Tibetan Plateau through the heart of mainland Southeast Asia, passing through or along China, Myanmar, Laos, Thailand, Cambodia, and Vietnam before it reaches the sea. Around 60 million people depend on it directly, and it sustains the largest inland fishery in the world. Only the Amazon outranks it for freshwater biodiversity, and it is home to giants like the Mekong giant catfish, one of the largest freshwater fish on Earth. It even performs a hydrological magic trick: every monsoon the flow into Cambodia's Tonlé Sap reverses direction, swelling the lake to many times its dry-season size and creating one of the most productive fisheries anywhere.

Whether they are worshipped, sailed, fished, dammed, or simply relied on for the water of daily life, each of these rivers has shaped the land and the people around it. Famous for very different reasons, they share one thing: the world would look nothing like it does without them.

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