Osaka, Japan

Osaka's street food culture is encapsulated in "kuidaore"—to ruin yourself by eating—with the Dotonbori district featuring hundreds of stalls for takoyaki, okonomiyaki, and kushikatsu. Kuromon Ichiba Market has supplied chefs for 200 years, and dishes here cost 30% less than similar fare in #4 Penang's hawker centres. Osaka's concentrated food zone offers 80% of its street eats within a 1.5-kilometer radius, making it more walkable than any other city on this list.