The tower of Diego de Siloé Monument · Santa María del Campo, Arlanza, Burgos Image of Santa María del Campo, not of the place itself. Diego de Siloé began in 1527 this Renaissance tower, which his pupil Juan de Salas continued. Chueca Goitia considered it the most beautiful and monumental of the Spanish Renaissance, and the archbishopric called it the pearl of the diocese. Photo: Elpata33 (CC BY-SA 4.0) What to see and do in Santa María del Campo