🇧🇷 Brazil · Earthwork
Marajoara Mounds (Teso dos Bichos)
Marajoara Phase (Polychrome Tradition) · Marajoara (Arauan-derived Amazonian Polychrome)
Marajoara chiefdom mounds (800–1400 CE)—40-m tesos and funerary urn fields on Amazon's delta island.
🇧🇷 Brazil · Ancient city
Kuhikugu — Seki Lake Southern Reservoir Cluster K17
Xinguano late 1100–1600 CE · Xinguano (ancestral Kuikuro)
Southern reservoir satellite K17 of Kuhikugu — 140 m reservoir and plazas at Seki Lake south, Xingu hydraulic answer to Upano.
🇧🇷 Brazil · Ancient city
Kuhikugu (Xinguano Lost Cities)
Xinguano 800–1600 CE · Xinguano / Arawak
Cluster of 20+ pre-Columbian settlements in Xingu with causeways 50 m wide, plazas, reservoirs, showing dense urbanism (population 50k) in Amazon before 1492, built 800–1400 CE, described by Michael…
🇧🇷 Brazil · Ancient city
Kuhikugu — Eastern Plaza Cluster K10 at Seki Lake East (Xingu East)
Late Pre-Columbian (800–1600 CE) · Upper Xingu / ancestral Kuikuro Arawak
Eastern plaza K10 of Kuhikugu cluster on Seki East — 12 ha plaza with ditch and 1.2 km causeway.
🇧🇷 Brazil · Buried city
Marajoara – Mound Complex of Marajó Island, Pará (Hypothetical Urbanism)
Marajoara Phase (800–1400 CE) Amazonian Polychrome · Marajoara / Aruã / Ananatuba
Amazon mouth tesos 12 m high with 3 km causeways at +1 m (800–1400 CE) — continental city 40,000 vs chiefdom 10,000 debated.
🇧🇷 Brazil · Ancient city
Kuhikugu South
Pre-Columbian Xinguano (800 – 1600 CE) · Xinguano (Arawak-Karib)
Kuhikugu South in Mato Grosso, Brazil is a Pre-Columbian Xinguano (800 – 1600 CE) ancient city attributed to Xinguano (Arawak-Karib) culture.
🇧🇷 Brazil · Ancient city
Kuhikugu — Eastern Lake Dourada Causeway Cluster K15
Xinguano 800–1600 CE (late pre-Columbian Amazon) · Xinguano (Arawak, ancestral Kuikuro)
Eastern Kuhikugu causeway-plaza K15 — 220 m plaza with 20 m causeways linking to fish weir, 2.8 km east of X11.
🇧🇷 Brazil · Ancient city
City of Z / Kuhikugu (Upper Xingu)
Claimed ancient (Fawcett 500 BCE Atlant. survivors) vs real Xinguano 800–1600 CE · Fawcett: imagined Atlantean/Cartaginian survivors; real: ancestral Kuikuro (Arawak) Xinguano polities
Fawcett's Atlantean Z near Xingu 1925 vanished – 30 km away Heckenberger found real 50-ha Kuhikugu road-plaza network.
🇧🇷 Brazil · Ancient city
Akakor & Akahim – Underground Amazonian Cities
Claimed 14,000–10,000 BCE gods' arrival; literary 1976 invention · Claimed Ugha Mongulala with 'Gods' (von Däniken flavored)
Tatunca's 13-gated underground Purus valley city for Ugha Mongulala — traced to German-born Günther Hauck, murdered journalist source.
🇧🇷 Brazil · Ancient city
Inga Stone Itacoatiara North Glyph
Bronze Age (3000–1200 BCE) · Bronze Age
Inga Stone Itacoatiara North Glyph in Paraíba, Ingá, Brazil is a Bronze Age (3000–1200 BCE) ancient city attributed to Bronze Age.
🇧🇷 Brazil · Archaeological wonder
Thonis Temple Pylon South
Iron Age (1200 BCE–500 CE) · Bronze Age
Thonis Temple Pylon South in Sambaqui Coast, Brazil is a Iron Age (1200 BCE–500 CE) archaeological wonder attributed to Bronze Age culture.