5. Maderuelo:
Go back in time and have a glimpse of history in Maderuelo—a tiny little town in the province of Segovia, Castile and León with 3000 years of history. Right from the preserved door and wall layouts of the late Middle ages to Moorish arches and Romanesque styled churchyards, this old settlement of Spain will amaze you with its great relics of the past.
A great list but I would also include some places in Extremadura!