Back to Meson del Boqueron, where the owners hooked us up with a pig special (holy crap that was good), plus we had the peppers, tripe, mussels, and quite a few other tasty things.
The second major art museum of the trip was next, Museo del Prado, which was very impressive in the traditional style, as opposed to the Renia Sofia's more modern collection. Also of note was the large police presence across from the Prado as well as in Puerta del Sol-- we found out hours later that even larger protests than usual were planned that day. Fortunately we didn't encounter anything...
The streets were packed that evening, making Madrid feel a little like Hong Kong's utterly insane crowds. We eventually made our way over to Botin, the oldest restaurant in the world, for a meal of lechon (roast pork), roast lamb, deep fried eggplant, and a white chocolate cheesecake that was almost worth the trouble all by itself (!).