CASTILLA Y LEON
Castile and León (in Spanish, Castilla y León) is the biggest autonomous community in Spain. About 60% of Spain's artistic and cultural heritage is found in Castile and Leon, which translates into 8 properties that are part of the World Heritage, 112 historical sets, 400 museums, 300 castles (out of which 16 are considered to have a high historical value), 11 cathedrals and the biggest concentration of Romanic art in the world. This makes Castile and León a very rich community in cultural heritage and the perfect place to visit while in Spain if you want to learn Spanish history.
Salamanca deserves a special mention as the second most populated city of Castile and León. It's very famous for its University, which is the oldest active university in Spain. It was founded in the 13th century by Alfonso X of Castile and León and for a long time it was one of the most prestigious universities in Europe. Many foreigners study Spanish in Salamanca because it's said they have the best Spanish accent. The city of Salamanca was declared World Heritage Site by the Unesco in 1988.