A fairly common cornerstone restaurant known as the Museo del Jamon actually could be a Museum of Ham if it wanted. Each "Museo" differs from its brothers, although the inventory is always the same: Ham.
The Museo del Jamon that we happened upon was in Northern Madrid, close to the Mailboxes Etc. we had to wait two hours for...while they took a siesta...with our Real Madrid tickets.
So, we dropped in to our first Museo del Jamon experience and standing at a counter, as gigantic, dusty hindquarters of pig hung above us, we picked from the 1 Euro menu. I chose the buttery croissant with ham and cheese shown below with a new drink that intrigued me.
Right and left, old ladies, old men, young people, everyone was ordering a beer and pouring lemonade to top it off. Tangy, sparkling, crisp. Actually, pretty good!
You can see the drink behind the appetizer that comes with a drink...which I mistook for my croissant. Luckily, when I asked the lady behind the counter, all she did was laugh hysterically at me.
Travel and learn something new every day. Or get laughed at. Or both at the same time.