Just how deep does the ocean go? Way further than you think. This animation puts the actual distance into perspective, showing a vast distance between the waves we see and the mysterious point we call Challenger Deep.
The Nile is a major north-flowing river in North Africa, generally regarded as the longest river in the world. It is 6,650 km (4,130 mi) long and runs through the Sudan, Burundi, Rwanda, DR Congo, Tanzania, Kenya, Ethiopia, Uganda and Egypt.
A comprehensive list of lists of rivers, organized primarily by continent and country.
The Yangtze, Yangzi or Ch¨˘ng Ji¨ˇng is the longest river in Asia, and the third-longest in the world. It flows for 6,418 km (3,988 mi) from the glaciers on the Tibetan Plateau in Qinghai eastward across southwest, central and ...
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