This is my favorite street in all of Madrid! As soon as you enter the street from the direction of Plaza Mayor, there is address 8 Cava Baja. It is a bar that on the outside has the most beautiful tile-painted mural outside! It's simply lovely. People will frequently lean out of their appartment windows over the narrow, alley-like street and holler "Hola, que tal?" and the like. Don't miss it next time you're in Madrid!