🇪🇸 Spain · Megalith
Dolmen de Alberite
Early to Middle Neolithic · Andalusian Neolithic / Guadalquivir Megalithic
20 m Andalusian corridor dolmen in Cádiz hills with painted orthostats and 30 m tumulus, c.4000 BCE.
🇪🇸 Spain · Ancient city
Tartessos and Doñana – Western Atlantis Hypothesis
Late Bronze to Iron Age Tartessian (1200–550 BCE collapse) · Iberian Tartessian with Phoenician Tartessos emporion + Greek
Arganthonios's Tartessian kingdom Guadalquivir — Doñana marsh 'rings' claimed Atlantis 2011, disproved as salinas.