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  "id": "inca-architecture-ollantaytambo",
  "title": "Inca Architecture and Construction at Ollantaytambo",
  "description": {
    "en": "Jean-Pierre Protzen's 1993 Oxford University Press monograph — the foundational experimental-archaeology study of Inca polygonal masonry technique. Protzen, an architect by training, conducted on-site replication experiments demonstrating that the famous polygonal-interlocking stonework at Ollantaytambo (and by extension Sacsayhuamán, Machu Picchu, and other Inca sites) was achieved through hammer-stone pounding, test-fitting, and progressive refinement, all within documented Inca tool capability. The work remains the principal scholarly reference on Inca construction technique."
  },
  "authored_by": [
    "Jean-Pierre Protzen"
  ],
  "topics": [
    "Inca",
    "Ollantaytambo",
    "Polygonal Masonry",
    "Andean Archaeology"
  ],
  "stance": "neutral",
  "source_type": "academic_monograph",
  "publish_date": "1993",
  "source_family": "science",
  "relation_to_wheel": "scientific_context",
  "licensing_status": "licensed",
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