We have taken a UK tour group in one of our coaches through somes cities and towns of Spain starting the trip in Madrid.
This route has made known to the tourists some castles of the provinces of Castilla y León (Ciudad Rodrigo, Salamanca (Aldea del Ovispo, Barba del Puerco, Zamora and Portugal (Almeida, Valle de Coa, Elvas).
Most of the castles in this area are "Vauban" type fortifications, a typology started in the 17th century by Sebastien Le Prestre whose essential feature is to have multi-pointed star floor type and several walls levels.