"Unlike other European cities, Madrid didn't boast much of a bread scene until graphic designer-turned bread baker Javier Marco came along with his artisanal sourdough and opened Panic in 2012. To this day, he sells six basic loaves, for which people continue to line up around the block, complemented by some incredible cakes baked by HomeCake. You'll occasionally find some pretty epic sandwiches (bocatas) here too, along with his magic touch on the traditional Pan Tomate. Make sure to ask about their occasional bread baking workshops."