Castle and old town of Tollos Monument · Tollos, El Comtat, Alicante Image of Tollos, not of the place itself. Tollos, the least populated municipality in the province of Alicante, preserves the remains of a castle of Arab origin on which its parish church was later built, along with narrow streets and stone façades. Photo: Viquipèdia (CC BY-SA 3.0) What to see and do in Tollos