The Casco Viejo is the heart of the city of Bilbao, its ancient soul, one that dates back to the time when the city was born, around 1300, on the right bank of the Nervion River. To learn about his past and discover its history have to do is immerse yourself in its Siete Calles, the seven main roads, around which branches off a reticular network of streets, alleys and squares of various sizes. Three are the main reference points: the square of the Santiago Cathedral, Plaza Unamuno and Plaza Nueva. One of the interesting aspects of the Casco Viejo is the commercial spirit of the city of Bilbao from morning to night. Here there are over 400 shops of all kinds, including workshops and most fashionable shops, passing the bar where you can taste the gastronomic specialties, maybe sitting in one of the outside tables to watch the comings and goings of people crowding the streets of downtown.