Amazon
The Amazon was a jungle region in South America on Earth, covers areas of Brazil. (PROSE: Warlords of Utopia)
In 1560, John Hart, posing as a conquistador, discovered the Crystal Monkey of El Dorado in the Amazon, only to lose it as well as a tooth to Jack Harkness, who punched him in the face. (AUDIO: The Death of Captain Jack)
In 1827, the Eleventh Doctor, Amy Pond and Rory Williams visited the Amazon. (AUDIO: The Eye of the Jungle)
On 1 May 1873, Professor Cornelius Perkins and his expedition discovered what they called "a frog the size of a rhinoceros" with the leg of one of the natives in its mouth as they were searching for the city of the Maygor tribe: the legendary Lost City of Gold. (AUDIO: The Valley of Death)
In 1889, the Fourth Doctor jokingly told George Litefoot that Leela was found floating down the Amazon in a hat box. (TV: The Talons of Weng-Chiang) In the 1890s, Leela later told Ellie Higson that she had lost her luggage in the same manner. (AUDIO: Dead Men's Tales)
In the 1920s, George Cranleigh went on an expedition to the Amazon in search of the black orchid. (TV: Black Orchid)
In the 1970s, the newly-married Clifford Jones and Jo Grant went to the Amazon in search of a rare fungus. (TV: The Green Death) While in the Amazon, Jo sent back the Metebelis crystal given to her by the Third Doctor. (TV: Planet of the Spiders) At one point, after months of travelling in the Amazon, Jo tried to call the Doctor but he had left UNIT. (TV: Death of the Doctor)
In 1970, fleeing from his native universe of Germania I after the defeat of the Greater German Reich, August Hitler spent 19 years hiding out in the Amazon. Marcus Americanius Scriptor tracked down his hideout and killed him in 1989. (PROSE: Warlords of Utopia)
Circa 2001, Charles Moore Wedderburn went on an expedition to the Amazon and discovered the Metahedron there. (PROSE: Falls the Shadow)
Circa 2060, the Amazon's ecosystem collapsed and the rainforest turned into a desert. (AUDIO: Loups-Garoux)
In the 51st century, the Amazon was a desert. The Eighth Doctor and Izzy Sinclair went there after detecting a distress call, which they traced to the Keep. (COMIC: The Keep)
