In Spain there are so many places, climate, culture, language and many more. First you must decide what kind of trip you want: big cities, historical towns, country, the Catholic experience, mountains, snow, beach, picnics, museums, and so on. Spain has a very rich offer for all this depends on the season.
Madrid is a good basis for a guilty trip in Spain because is closer to the center of the geometry and really good connected by the car, bus, train and plane. Madrid has three major museums paint in the world (El Prado, Thyssen and Reina Sofa), among others, the beauty of the old downtown, Marche (the night special party), real Egyptian temple in the heart of the city near the Government Palace and very close to the history and architecture of cities to let one days in Segovia, villa, Cuenca, Toledo, Aranjuez (you can choose el tren de la Fresa- strawberry train), Alcala de Henares and El Escorial. It is difficult to make detailed recommendations for these places because they are full of them.
