Castle of las Cuevas de Cebolleros Monument · Merindad de Cuesta-Urria, Las Merindades, Burgos A singular construction excavated and raised in Cebolleros, a locality whose church also preserves a sixteenth-century Renaissance altarpiece restored not long ago; the municipality brings together twenty-four villages around Nofuentes. Photo: Cronoser (CC BY-SA 4.0) What to see and do in Merindad de Cuesta-Urria