The Guinness Book of Records calls this the world's oldest restaurant (1725), and Hemingway called it the best. The latter claim may be a bit over the top, but the restaurant is excellent and extremely charming (and so successful that the owners opened a "branch" in Miami, Florida). There are four floors of tile, wood-beam dining rooms, and, if you're seated upstairs, you'll pass ovens dating back centuries. Musical groups called tunas often drop in to meander among the hordes. Specialties are cochinillo (roast pig) and cordero (roast lamb). It's rumored Goya washed dishes here before he made it as a painter.