Paititi is a legendary Inca lost city or utopian rich land said to lie east of the Andes, hidden somewhere within the remote rainforests of southeast Peru, northern Bolivia or southwest Brazil. The Paititi legend in Peru revolves around the story of the culture-hero Inkarri, who, after he had founded Q'ero and Cusco, retreated toward the jungles of Pantiacolla to live out the rest of his days in his refuge city of Paititi. Other versions of the legend see Paititi as an Inca refuge in the border area between Bolivia and Brazil.
In 2001, the Italian archaeologist Mario Polia discovered the report of the missionary Andres Lopez in the archives of the Jesuits in Rome. In the document, which dates from about 1600, Lopez describes a large city rich in gold, silver and jewels, located in the middle of the tropical jungle called Paititi by the natives. Lopez informed the Pope about his discovery. Conspiracy theories maintain that the Vatican has kept Paititi's location secret for its own reasons. Lopez' report and its discovery were widely publicized, though its content is third-hand and far from reliable, Lopez himself having never reached Paititi but only having heard about it from the natives. It focuses on the story of a miracle performed at the court of the king of Paititi by a crucifix taken there by a group of baptized Indians. Many other historical sources of the Colonial period (16th to 18th centuries) refer to Paititi, to its possible locations and to expeditions searching for it. Some of the most informative of these documents include Juan Álvarez Maldonado (1570), Gregorio Bolívar (1621), Juan Recio de León (1623–27), Juan de Ojeda (1676), Diego de Eguiluz (1696).
In 2001, two researchers from the University of Helsinki, Dr. Ari Siiriäinen (archaeologist) and Dr. Martti Pärssinen (historian), put forward a hypothesis according to which the Paititi legend was related to the Inca expeditions into the Amazonian jungle and to the possible Inca military presence in the region of the Beni and the Madre de Dios rivers. In order to test this hypothesis, a joint Finnish-Bolivian archaeological expedition was carried out in 2001–3 to investigate the fortified site Las Piedras near the town of Riberalta in the Eastern Bolivia. Some fragments of imperial Inca ceramics were found during the excavations but the presumed Inca origin of the site remains questionable.
Historian and anthropologist Vera Tyuleneva has contributed to the idea of the non-Peruvian origin of the name "Paititi" and its original locale; she has made expeditions to northern Bolivia and provided extensive and detailed written reports on her findings.
On 29 December 2007, members of a local community near Kimbiri, Peru, found large stone structures resembling high walls, covering an area of 40,000 square meters; they named it the Manco Pata fortress. However researchers from the Peruvian government's Cusco-based National Institute of Culture (INC) disputed suggestions by the local mayor that it could be part of the lost city of Paititi. Their report identified the stone structures as naturally formed sandstone. In 2008 the municipality of Kimbiri decided to promote it as a tourist destination.
Recent historical work by the explorer Andrew Nicol examined primary historical texts and concluded that a jungle city or remote Inca outpost, such as the city described by the Paititi legend, could theoretically exist within the Peruvian Amazon Basin.
Expeditions in search of Paititi for the past 100 years
- 1925: Percy Harrison Fawcett (Mato Grosso, Brasil).
- 1954 to 1955: Hans Ertl (Bolivia)
- 1958 to 2003: Peruvian explorer Carlos Neuenschwander Landa led multiple expeditions in search of Paititi, in the Madre de Dios region and Cusco region.
- 1971: A French-American expedition led by Bob Nichols, Serge Debru, and Georges Puel travelled up the Rio Pantiacolla from Shintuya in search of Paititi. The party's guides left after a 30 day agreement expired, and though the three continued on, they never returned. Japanese explorer Yoshiharu Sekino contacted Machiguenga Indians in the area the following year and confirmed that the expedition members had been killed.
- 1984 to 2011: various expeditions led by Gregory Deyermenjian, member of The Explorers Club. These included the documentation of Incan remains in Mameria, the exploration and documentation of the petroglyphs at Pusharo, exploration and documentation of Manu's Pyramids of Paratoari, and others 
- 1997 Lars Hafskjold set out from Puerto Maldonado, Madre de Dios, Peru. He disappeared somewhere in the unexplored parts of Bolivia.
- In June 2001, the Kota Mama II expedition led by John Blashford-Snell located some significant ancient ruins in the jungle east of Lake Titicaca in Bolivia which are believed to be identical to those discovered earlier by Hans Ertl.
- 2001 Thierry Jamin investigates the site of Pantiacolla. The pyramids are in fact natural formations but Jamin discovered several Inca artefacts in the same area.
- 2002 Jacek Pałkiewicz undertook an expedition.
- The June 2004 "Quest for Paititi" exploration team of Deyermenjian and Mamani discovered several important Inca ruins along branches of the Inca Road of Stone at the peak known as Último Punto in the northern part of the Pantiacolla region of Peru.
- 2005 The French explorer Thierry Jamin and the French-Peruvian Herbert Cartagena studied Pusharo petroglyphs and reported to have seen large geoglyphs in a valley nearby. They thought they might have found a "map" showing where Paititi might be located. Further expeditions were set up in the following years.
- 2009 to 2011: various expeditions by Italian researcher Yuri Leveratto. He reached one of the Pyramids of Pantiacolla (or Paratoari).
- 2011 British expedition to investigate the Pyramids of Paratoari with Kenneth Gawne, Lewis Knight, Ken Halfpenny, I. Gardiner and Darwin Moscoso as part of documentary. 
- Archivum Romanum Societatis Iesu
- See http://www.palkiewicz.com/ekspedycje/index.php?p=paiti4
- Siiriäinen, Ari and Pärssinen, Martti. The Amazonian Interests of the Inca State (Tawantinsuyu). In: Baessler-Archiv Nº49. Berlin. 2001.
- See Pärssinen, Martti y Siiriäinen, Ari. Andes Orientales y Amazonía Occidental Ensayos entre la historia y arqueología de Bolivia, Brasil y Perú. UMSA – Colegio Nacional de Historiadores de Bolivia. Producciones CIMA: La Paz. 2003.
- Tyuleneva, Vera. La Tierra del Paititi y el Lago Rogoaguado. In: Estudios Amazónicos Nº6, June 2007. Lima: Centro Cultural José Pío Aza. Pp. 97-162.
- Tyuleneva, Vera. Apolobamba: Zona de contacto entre la sierra y los Llanos Amazónicos. Informe de la temporada de campo 2007, presentado a la Dirección Nacional de Arqueología de Bolivia. La Paz, 2008.
- See also Tyuleneva, Vera. La leyenda del Paititi: versiones modernas y coloniales. In: Revista Andina Nº36, 2003. Cusco: Centro Bartolomé de las Casas. Pp. 193-211. The first part of this article concerning Paititi in the oral tradition is still relevant, while the second part related to the historical sources has been since radically reconsidered by the author
- "Peru: Archaeological Fortress Discovered in the town of Kimbiri, Cusco". Living in Peru. ANDINA. January 10, 2008. Retrieved December 24, 2012.
- "New archeological vestiges found in Manco Pata fortress". ANDINA - Peru News Agency. Jan 29, 2008. Retrieved December 24, 2012.
- Kelly Hearn (Buenos Aires) (February 25, 2008). "Peru's "Lost City" Is a Natural Formation, Experts Rule". National Geographic News. Retrieved December 24, 2012.
- "Peru: Cusco authorities to promote Manco Pata archaeological site in Kimbiri". Living in Peru. ANDINA. August 5, 2008. Retrieved December 24, 2012.
- Andrew Nicol (2009). "Paititi: The Last Secret Of The Incas? A Critical Analysis Of The Legends Surrounding The Lost Inca City Of Gold". International Journal of South American Archaeology (5).
- Fawcett, Percy Harrison. Exploración Fawcett. Santiago de Chile: Zig-Zag. 1955.
- Hans Ertl (1956). Paititi: Ein Spähtrupp in die Vergangenheit der Inkas, Anden-Amazonas-Expedition 1954/55. München: Nymphenburger Verlag.
- Carlos Neuenschwander Landa (1983). Paititi, en la bruma de la historia. Cuzzi. ASIN B0046QFQ62. OCLC 11724089.
- Carlos Neuenschwander Landa (1963). Pantiacollo. Lima: Organizacion Peruana del Libro. OCLC 8604014.
- Gregory Deyermenjian (2003). "Mameria: an Incan Site Complex in the High-Altitude Jungles of Southeast Peru". Athena Review 3 (4).
- Preston Peet (2005). "A Conversation with Greg Deyermenjian". Underground!. The Disinformation Company. p. 286. ISBN 1-932857-19-2.
- http://news.nationalgeographic.com/news/2008/01/080116-lost-city_2.html news.nationalgeographic.com Jan. 2008
- http://www.explorers.org/index.php/mediaroom/news_detail/interview_with_greg_deyermenjian_fn88 Interview with Gregory Deyermenjian at explorers.org>
- http://www.athenapub.com/timpia2.htm Expedition 2000 at Athena Magazine
- http://www.explorers.org/flag_reports/Flag75_Deyermenjian.pdf Expedition 2006 at explorers.org
- http://www.explorers.org/flag_reports/Flag_44_Greg_Deyermenjian.pdf Expedition 2008 at explorers.org
- http://expeditionnews.com/Archives/EN0602.html Expedition 2006 at expeditionnews.com
- "Gregory Deyermenjian, who has been looking for the city for 20 years has found about 15 different settlements". 3 August 2011. Retrieved 2013-03-22.
- "Lars Hafskjold's disappearance". Retrieved 2009-07-19.
- "The Kota Mama Expedition". Retrieved 2008-01-17.
- "Buscan la ciudadela perdida de los incas en selva del Manu". Perú 21 (in Spanish) (Peru). 11 November 2008. Retrieved 17 March 2013.
- "Le site des chercheurs du Gran Paititi". Retrieved 2008-12-20.
- Yuri Leveratto (2010). Cronache indigene del Nuovo Mondo. ASIN B007H9DMHU.
- "Expedicion a las piramides de Pantiacolla". Retrieved 2009-08-20.
- "Expedition in the jungle of Guaporé River: the enigma of the lost city of Labyrinth". Retrieved 2012-05-20.
- "Expedition in the jungle of Rondonia: the discovery of Madeira Fortress". Retrieved 2012-05-20.
- Dundee explorer's search for 'lost city' of Paititi. (2011, August 3). BBC News Retrieved from http://www.bbc.co.uk/news/uk-scotland-tayside-central-14387741
- The Secret of the Incas (2011, October 6) Retrieved http://thesecretoftheincas.com/
- Andrew Nicol (2010). "Legends and New Research about Paititi, Peru's Lost City of Gold". Living in Peru. http://www.livinginperu.com/features-1613-art-culture-lifestyle-legends-new-research-about-paititi-perus-lost-city-gold.
- Andrew Nicol (2010). "Peru: The Trail to Paititi". South American Explorers Magazine (94). http://www.saexplorers.org/magazine/featured-articles/on-the-trail-of-paititi-%E2%80%93-the-incan-el-dorado/.
- Andrew Nicol (2009). "Paititi: The Last Secret Of The Incas?. A Critical Analysis Of The Legends Surrounding The Lost Inca City Of Gold.". International Journal of South American Archaeology (5). http://www.scribd.com/doc/20483798/.
- Gregory Deyermenjian (1999). "Glimmers of Paititi". Mercator's World 4 (1). Archived from the original on June 30, 2003.
- Gregory Deyermenjian (2000). "The Petroglyphs of Pusharo: Peru's Amazonian Riddle". Athena Review 2 (3).
- Gregory Deyermenjian (1999). "On the Trail of Legends: Searching for Ancient Ruins East of the Andes". GPS World 10 (6): 20–29.
- Gregory Deyermenjian (1990). "The 1989 Toporake/Paititi Expedition: On the Trail of the Ultimate Refuge of the Incas". The Explorers Journal 68 (2): 74–83.
- Gregory Deyermenjian (2006). "In Search of Paititi: Following the Road of Stone into an Unknown Peru". The Explorers Journal 84 (1): 28–35.
- John Blashford-Snell and Richard Snailham (2003). East to the Amazon. London: John Murray. ISBN 0-7195-6504-9.
- Jamin, Thierry & Ruquier, Pierre-Albert (2006). L'Eldorado Inca : A la recherche de Païtiti (in French). Paris: Hugo & Compagnie. ISBN 978-2755600988.
- Jamin, Thierry (November 2007). Pusharo, la memoria recobrada de los Incas (in Spanish). Lima: Edisa. ISBN 9972335662 Check