Spain: Castile and Leon: Burgos and Segovia

Burgos has two sites worth noting: the Arco de Santa Maria, which is the medieval entrance into the city, and the Gothic cathedral.  Segovia has the Alcazar, which started as a Moorish fortress to a Catholic palace, and the Roman aqueduct.  Both cities can be missed, as you see alcazars and churches in other cities, and you can go to Italy to see all the aqueducts you want.  This only proves that yes, indeed, Spain was also part of the Roman Empire during the Pax Romana.