Old Church of San Justo y Pastor Monument · Buenavista de Valdavia, Vega-Valdavia, Palencia Image of Buenavista de Valdavia, not of the place itself. Built with stones from the old castle of Agüero, it was restored in the nineties, when medieval pieces and sarcophagi appeared beneath its floor; today it functions as the village's exhibition hall. Photo: Valdavia (CC BY-SA 4.0) What to see and do in Buenavista de Valdavia