Many visitors come to Madrid not only because of its sights, but also because of its outstanding art collections in the world's finest museums: the Prado, the Thyssen-Bornemisza and the Reina Sofia Museums. They're huge and a lot of time is needed to enjoy the works of art properly. A little preparation can come in handy as well.
On Plaza de Cibeles there is a fountain with the statue of the goddess Cybele in a chariot pulled by lions, a symbol of the city. There is also the impressive building of the Post Office on this square. On the other side of Paseo del Prado there's another fascinating fountain, Fuente de Neptuno, featuring Neptune on his chariot holding a trident. They used to look at each other, but now they don't. Both of them face the city center.
Estadio Santiago Bernabeu is a must see, but I saw it on my previous visit to Madrid, on a class trip in 1999 and this was enough for me. So the boys took the metro to delight in exploring this impressive stadium, leaving my friend, her daughter and me the whole afternoon for our favorite pastime: shopping.
Yes, shopping in Madrid is an enjoyable experience. El Corte Ingles, Zara, Mango and so many shops that sell shoes. Fantastic!