Egypt, Sudan, South Sudan, Ethiopia, Uganda, Congo, Kenya, Tanzania, Rwanda, Burundi and Eritrea. The longest river in the world, the Nile is estimated to be at least 30 million years old.

Major cities like Pittsburgh, Cincinnati, and Louisville along its banks. - Longest river entirely in Texas. - Watershed: 45,600 sq miles. - Famous for reservoirs like Lake Possum Kingdom.

Many people assume the longest river in the U.S. is the Mississippi, but that title belongs to the Missouri and part of American agriculture history.

Industries and farming there contribute as much as 40% of China's whole economy. This vast river – the biggest in Asia and third longest in the world – is also hugely important because of the variety ...

The iPad was covered in dark mud after five years at the bottom of England’s longest river, the Thames, but it was the chip ...

The Nile River is the world’s and Africa’s longest river, spanning 4,130 miles (6,650 km). The river flows from the White Nile near Lake Victoria and the Blue Nile from Lake Tana, and joined ...

The mountain, which viewers say resembles a dog's head, lies along the Yangtze River - the longest in China and the third-longest in the world - and can be viewed from an observation deck.