🇵🇪 Peru · Temple complex
Sechín Bajo Archaeological Site
Late Archaic–Initial 3500–1500 BCE · Casma-Sechín tradition
First Plaza 3500 BCE, Third Platform 16 m × 300 m.
🇵🇪 Peru · Pyramid
Las Aldas
Late Preceramic – Initial Period (c.2500–1000 BCE) – Casma-Sechín · Casma-Sechín (Preceramic to Initial)
Las Aldas is a monumental U-shaped temple-plaza on a coastal eolian terrace at Casma, Ancash, at 30 m above the Pacific.
🇵🇪 Peru · Archaeological wonder
Chankillo Archaeoastronomical Complex
Early Horizon–Early Intermediate 250–200 BCE (Initial Late Chavín to Wari interstice, Casma-Sechín tradition) · Casma–Sechín / Pampas ( north-central desert, precedent to Moche for Casma valley, not Inca)
Oldest solar observatory in Americas (250–200 BCE): 13 evenly spaced 2–5 m towers on 300 m ridge crest marking annual solar horizon from two enclosed observation pavilions (western fortress hill and…
🇵🇪 Peru · Archaeological wonder
Chankillo — Second Thirteen Towers Sector
Early Horizon–Early Intermediate Casma Sechín 250–200 BCE · Casma/Sechín (Punkurí tradition)
Second Thirteen Towers line 400 m east of famous solar observatory, with observing building and bastions.
🇵🇪 Peru · Pyramid
Pampa de las Llamas-Moxeke — Second Platform
Initial Period Casma-Sechín 1800–900 BCE · Casma/Sechín (Moxeke–Pampa de las Llamas polity)
Second platform of earliest planned city in Peru: 30 m Moxeke pyramid with warrior friezes over 200 compounds grid.
🇵🇪 Peru · Pyramid
El Purgatorio (Huaca Fortaleza) — Max Andean Pyramid (Casma Valley, Peru)
Late Moche to Middle Horizon / Early Intermediate (600–900 CE dominant) · Casma (Sechín) culture, Moche substrate
Largest single adobe structure in Peru and largest pyramid by volume in the New World — 270 m long, 180 m wide, 30 m high truncated pyramid (4 platforms stepped) dominating Casma plain, debated Late…
🇵🇪 Peru · Pyramid
Pañamarca — Moche Painted Pyramid (Nepeña Valley, Ancash, Peru)
Late Moche (500–850 CE), Early Intermediate to Middle Horizon · Moche (Mochica, Late Moche Nepeña polity)
Southernmost monumental Moche centre (550–800 CE, Late Moche) and largest Moche painted pyramid south of Pampa Grande — 20 m-high adobe pyramid (45x35 m platform) set on hill crown dominating Nepeña…