Dolmen de Soto
Trigueros, Spain
The Dolmen de Soto is a Neolithic subterranean tomb in Trigueros, Andalucía, Spain. It is estimated it was built between 2500 and 3000 BC and is one of about 200 neolithic ritual-burial sites in the province of Huelva.
Archaeological site data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).