Lost City of Z

Based on early histories of South America and his own explorations of the Amazon River region, Fawcett theorized that a complex civilization had once existed there, and that isolated ruins may have survived.

Fawcett found a document known as Manuscript 512, held at the National Library of Brazil, believed to have been written by Portuguese bandeirantes João da Silva Guimarães [pt].

After the war ended, in 1920, Fawcett undertook a personal expedition to find the city but withdrew after suffering from fever and having to shoot his pack animal.

Researchers believe that Fawcett may have been influenced in his thinking by information obtained from indigenous people about the archaeological site of Kuhikugu, near the headwaters of the Xingu River.

[1] In 2009 he developed it into a book of the same title, and in 2016 it was adapted by writer-director James Gray into a film of the same name starring Charlie Hunnam, Robert Pattinson, Tom Holland, and Sienna Miller.

The British surveyor Percy Fawcett in 1911, who believed an indigenous city, which he called "the Lost City of Z", had existed in the Brazilian jungle