This is probably the most complete museum of Basque culture and history in all of Spain. The story begins in prehistory; from this murky period the displays bound rapidly up to the modern age, in the process explaining just how long the Basques have called this corner of the world home.
Alas, unless you read Spanish (or perhaps you studied Euskara at school?), it’s all a little meaningless as there are no English translations.
The museum is housed in a fine old building, at the centre of which is a peaceful cloister that was part of an original 17th-century Jesuit college. In the cloister is the Mikeldi Idol, a powerful pre-Christian symbolic figure, possibly from the Iron Age.