the National Archives. It's been a palace for the ruling class of Mexico since the Aztec empire. I think the jugo de naranja (orange juice) vendor may have been a more recent arrival.
Chicharrón, or pork rhinds to us, are a popular snack. Made from pig skin that's rendered, dried, and then fried, I can proudly say that for once, I was not tempted to pig out. I wrote that day down in my journal for posterity.