Dolmen de Aizkomendi Historical milestone · San Millán/Donemiliaga, Cuadrilla de Salvatierra/Agurain, Álava One of the best-preserved megalithic remains in the Basque Country, located near Eguílaz; discovered in 1832 and excavated on several occasions (1845, 1872, and later by José Miguel Barandiarán). It dates from the Neolithic and Metal Ages and served a funerary function. descubierto en 1832 Photo: Basvb (CC BY-SA 3.0 es) What to see and do in San Millán/Donemiliaga