The River Nile was in Egypt.
History
In ancient Egypt, an escaped alien criminal planned to harness the Nile's kinetic energy to power a tachyon pulse inverter. Its activation would have ignited Earth's atmosphere and burned half of its surface. The alien's plot was thwarted when the Eleventh Doctor recaptured it. (COMIC: Assimilation²)
The Eighth Doctor travelled down the Nile with Ediphis. The Osirian, Thoueris, hid in the Nile. She could control the crocodiles there with a ring. (COMIC: The Power of Thoueris!)
The Sixth Doctor and Peri Brown saw Cleopatra's barge travel down the Nile. (PROSE: State of Change)
During the alternate timeline of The Year That Never Was, the Master had the Nile frozen over. (TV: Last of the Time Lords)[additional sources needed]
In another alternate timeline, penguins lived on the Nile. (TV: The Big Bang)
