Santillana is a picturesque town located in the northern region of Spain, specifically in the province of Cantabria. Known for its medieval architecture, the town features cobblestone streets and charming stone houses. One of its most famous attractions is the Colegiata de Santa Juliana, a Romanesque church that dates back to the 12th century. The area surrounding Santillana is rich in history and natural beauty. Nearby, visitors can explore the Altamira Caves, renowned for their prehistoric cave paintings. Santillana del Mar is often referred to as "the town of three lies" because it is neither a saint (santo), flat (llana), nor by the sea (mar).