The castle and Mudéjar tower of Fuente el Sol Monument · Fuente el Sol, Tierra de Medina, Valladolid Image of Fuente el Sol, not of the place itself. The village preserves the remains of its castle and a Mudéjar brick tower, as well as the parish church of San Juan Bautista, in a municipal district of 20.92 square kilometres with barely a century and a half of residents. Photo: Fundación Joaquín Díaz (CC BY-SA 3.0) What to see and do in Fuente el Sol