Most spheres date to late pre-Columbian chiefdom period
Claim about Diquís Stone Spheres (Bolas de Piedra) · Stance: supporting
The serial World Heritage property is associated with settlements and monuments broadly dated to roughly AD 500–1500 (with debate about tighter ranges).
Site
- Diquís Stone Spheres (Bolas de Piedra) Palmar, Puntarenas Province, Costa Rica
Evidence for and against
- UNESCO maps: component sites and coordinates
- Metropolitan Museum object entry (stone sphere as curated artifact)
- Component site: Finca 6 (UNESCO coordinate)
- UNESCO: reported sphere size range (public-facing metric)
Other claims about Diquís Stone Spheres (Bolas de Piedra)
- Placements likely structured social space (but context is often lost)
- Local igneous stone and labor-intensive shaping
- 20th‑century relocation and looting damaged provenance
- “Perfect sphere” claims are overstated
- Some arrangements may be deliberate—evidence is patchy
- Alternative: astronomical or “map” encoding
- Atlantis/alien narratives persist without evidence