Castrillo de los Polvazares is one of the most beautiful towns in the Maragatería region of León. A town of cobblestone streets and emblazoned houses that was declared a historic-artistic complex and that preserves its popular architecture intact. The stone and red clay of its facades contrasts with the bright colors of the gates and windows: blues, greens and whites. Tones that reveal a muleteer past to tourists who cross Calle Real, the backbone of the town. It is considered the most beautiful example of popular architecture in the entire Maragatería region. A region closely related to the guild of muleteers who lived throughout this area and whose economic resources resided in the transportation of goods from the north of Spain to the plateau and vice versa.