When Alexandra Yingst plopped down at a bar in Reykjavik after a 10-hour drive through a blizzard, she saw something unexpected: a Big Mac, in seemingly perfect condition, under a glass dome. It turns out that Big Mac tells us a lot about Iceland’s economy and national identity. Our friends at the Atlas Obscura podcast explore the world’s strange, incredible, and wondrous places — and this week they’re bringing us two of their best food stories.