Barcelona is capital of Catalonia and world-famous for soccer and architecture. You must visit the cathedral Sagrada Familia, designed by Gaudi, that has been under construction since 1883. Camp Nou, where FC Barcelona resides, is an experience of a different kind.
Cadiz is one of the oldest cities in Europe. It's location is quite unique, since it is surrounded almost completely by water (similar to Venice). James Bond used the city to resemble Cuba.
Jerez is known mainly for two things: 1) the bodegas for the finest Sherries and 2) the Equestrian School for ultimate horse back riding demonstrations. Add to this great weather, some flamenco and lots of orange trees and then you know something about Jerez de la Frontera.
Málaga is an important tourist destination, known as "the capital of the Costa del Sol". An estimated 6 million tourists visit the city each year, who usually visit the birthplace of Pablo Picasso.
Mallorca (aka Majorca) is a very well visited Spanish vacation island in the Mediterranean. Many Germans, Brits and other Europeans spend their vacation in one of the many resorts on one of the many beaches - or just in a Finca in the main land. Some even spend the whole winter there and enjoy the pleasant climate and atmosphere. Palma de Mallorca has excellent connections by air to many European cities.
Ronda, Andalusia, is known for its cliffside location and a deep canyon that divides the town. Both sides are connected by an ancient viaduct. Another point of interest is the, now not used, arena for bull fighting.
The Canary Islands are politically part of Spain, but closer to Morocco. The islands are mainly volcanic with a very pleasant spring-like climate year-round.
Santiago de Compostela is the capital of Galicia and the end point of the pilgrimage "Camini de Santiago" and the apostel James should be buried here. The journey here is different from other journeys since people like to either walk or bike.