The tower-keep of the Guzmán family Monument · Caleruega, Ribera del Duero, Burgos Image of Caleruega, not of the place itself. Defensive tower of the 12th century that formed part of the ancestral house of the Guzmán family. In the fifties it was integrated into the cloister of the new Dominican convent, which added to it the crenellated top seen today. Photo: Maintenance script (CC BY-SA 3.0) What to see and do in Caleruega