🇨🇴 Colombia · Archaeological wonder
Tierradentro National Archaeological Park (Cauca – Tierradentro (eastern Cauca Andes, Paéz valley))
Regional Classic 600–900 CE (Tierradentro phase; pre-Tierradentro contexts 300 BCE–600 CE in shafts) · Tierradentro (Nasa Páez region, distinct from San Agustín, Cauca Andes)
World-unique Andean hypogea mountain cemetery: 162 known rock-cut underground chamber tombs (5–8 m deep via vertical winding stair duct, oval 12 m chambers with radial pillars, domed ceilings…