Mexico CityThe market plays an important role in Mexico City’s daily life, not just because of its vendors but also because of its food makers – these market districts are home to a dizzying mix of street food sellers and small specialty restaurants. We sample some of these treats, tacos included, on our Market Watch walk.

LisbonOn our Hidden Flavors of the Hillside walk, we explore Lisbon’s historic neighborhoods of Mouraria and Graça. While the smell of change is in the air here – new communities are sinking roots and new restaurants are opening – we also visit traditional spots, like the city’s oldest coffee roaster, a third-generation family business.

IstanbulThe Bosphorus Strait, which divides the city of Istanbul and separates the European and Asian continents, has long influenced the city’s cuisine. Although it’s no longer heaving with fish, we can still see some fresh catches on our Born on the Bosphorus walk, which begins in the market of Beşiktaş.