Join 科学・技術 upcoming events being held in Santillana. Santillana, often referred to as the "town of three lies" because it is not a saint, not flat, and has no beach, is a picturesque and historic city located in the Cantabria region of Spain, known for its well-preserved medieval architecture, cobblestone streets, and the famous Altamira Cave, a UNESCO World Heritage Site home to prehistoric cave paintings.