Tostadas, Mexico
Unlike tacos, which are soft tortillas, tostadas are traditionally shaped into a small flat disc and fried until crisp. Toppings range from classic combinations like refried beans, guacamole, salsa and cheese to lighter seafood options like shrimp ceviche. Be prepared to get messy: a crunchy tostada, while delicious, doesn’t make for easy eating.
Bakso, Indonesia
Obama famously declared his love for this meatball soup on a visit to Indonesia, and we can see why. While the President got his bakso at a formal dinner, street carts are the best place to sample these ground beef balls, cooked in a clear broth with noodles, egg and shallots.