The Yangtze River is the longest river in Asia and the third-longest in the world, located entirely in China.

The Mississippi River empties into the Gulf of Mexico, forming a large delta in the southern United States.

The Three Gorges Dam is built across the Yangtze River in Hubei province, China.

Lake Victoria is widely considered the principal source of the White Nile, which constitutes the main flow of the Nile system.

The Mississippi River is a vital commercial transportation artery for the United States, connecting the American Midwest to the Gulf of Mexico.

The Amazon River has the largest drainage basin in the world, covering approximately 7 million square kilometers.

The confluence of the White Nile and the Blue Nile occurs at Khartoum, the capital of Sudan.

The Amazon River flows through the Amazon rainforest, which holds the greatest biodiversity of any ecosystem on the planet.

The Aswan High Dam was built across the Nile River in Egypt to control flooding and provide irrigation and hydroelectric power.

The Amazon River flows eastward and discharges its massive volume of water into the Atlantic Ocean.

The Missouri River is the longest river in the United States and is the primary tributary of the Mississippi River.

The Yangtze River is often referred to as the Golden Waterway because of its importance as a major transportation artery in China.

The Amazon River experiences the 'pororoca', a powerful tidal bore that travels inland for hundreds of miles.

The Mississippi River basin encompasses parts of 31 U.S. states and two Canadian provinces.

The Yangtze River's headwaters are located in the glaciers of the Tanggula Mountains on the Tibetan Plateau.

The Ancient Egyptian civilization was concentrated along the lower reaches of the Nile, relying on its annual floods for agriculture.

It is estimated that the Amazon basin contains about 10 percent of the world's known biodiversity.

St. Louis, Missouri, is strategically located near the confluence of the Mississippi and Missouri rivers.

The Sahara is the largest hot desert in the world, covering much of North Africa.