Peñaranda de Duero is a picturesque town located in the Burgos Province of the Castile and Leon region in Spain. Situated on a hilltop overlooking the Duero River, this charming town is known for its rich history, stunning architecture, and breathtaking natural surroundings. The town's historic center is a maze of narrow, winding streets lined with well-preserved medieval buildings. The most prominent landmark is the Peñaranda Castle, a majestic fortress that dates back to the 10th century. With its imposing walls and towers, the castle offers panoramic views of the surrounding countryside.