The underground wine cellars of the hill Curiosity · Peñafiel, Campo de Peñafiel, Valladolid Image of Peñafiel, not of the place itself. Beneath the castle hill more than two kilometres of galleries were dug that maintain a constant temperature of around fifteen degrees. A single one of those cellars came to hold three thousand barrels. Photo: Rastrojo (D•ES) (CC BY-SA 4.0) What to see and do in Peñafiel