With Teresa's apartment Madrid is at your doorstep. Prado museum is 10 minutes walk. And Prado makes Louvre look like an ordinary picture gallery:) See the history of art in flesh complete with Bosch, Goya, Velasquez, Durer, Tiziano, El Greco, Rembrandt... The supersize modern art center Reina Sofia is another 10 minutes away. With everything you need to know about Picasso, Miro and Dali and some other half a million works of art. If you'll be still alive after those two, you can always drop in at Thyssen Bornemisza (he was a rich guy with a tendency to avoid taxes and with one of the richest private modern art collections there was and is) on your way home. You can see Balthus there and Balthus ir rarely seen. Not to speak of Lucian Freud (the painter, not the shrink). If art is not your cup of tea you will always find half a million cerveserias, cafeterias, mejilonerias, tabernas, restaurants, you name it. Why am I talking arts and cuisine instead of describing Teresa's apartment? Well, it is all there in the pictures and in the rest of the comments. Highly recommended. Cervantes would have spend a few days there. And in fact he probably did:)