Architectural and historical monuments of the Ottoman Era, the hans and caravansaray that freckle the old city, have mostly been left to their own devices. Originally built as imposing weigh stations for incoming traders, today they are crumbling in places and patched up with duct tape in others. These buildings are still living spaces of commerce and craftsmanship, or simply storage, a tradition which reaches back centuries. Wandering around one han which hosts a bustling trade in yarn, or visiting an Armenian silversmith in his tiny vaulted cell tapping detail into an elaborate dinner plate is a magical experience.

This row of coffee beans, roasted and then grinded, is enough to wake up an entire city. One might stumble upon such a scene on our Culinary Secrets of Downtown Athens tour.

We’d heard from a colleague that Renatos had the best barbacoa game in town, and we finally got the chance to confirm this claim for ourselves a couple of weeks ago. This family joint in Mexico City’s Azcapotzalco neighborhood has been in business for 55 years. Its owner, Renato Álvarez, gave us a little history lesson about his family and their barbacoa business. The barbacoa recipe prepared in Renatos is from the state of Hidalgo, famous for mutton slow-cooked in a pit dug into the ground.

It was a hot, humid June in Istanbul. A deadline hovered over Ahmed. He gave himself three months to make the biggest decision of his life: Would he stay? Or would he go? The reasons to leave Istanbul far outnumbered the ones to stay. He was working day and night for a salary that barely made ends meet. The long hours weren’t new – his life in Aleppo was work, 15 hours a day, seven days a week. But unlike in Turkey, Ahmed made more than enough in Syria: he bought a brand new house for his family just before the war; his wife, Laila, was a respected housewife, pushing her kids to study; his two older kids, Rubi and Ruseel – little Rivana wasn’t even born yet – went to good schools. Rubi even had a private English tutor.

We consider ourselves fabulously lucky every time we snatch up one of the ten counter stools or the three-seater table inside the triangular shaped and miniscule Savoy Pizza. Up a few steps as the street curves around behind itself, this smallest of small restaurants is easily missed; the space seems carved out of the corner of a building, almost like the bow of a ship. The best way to find it is to look for the clutch of hungry people hanging around outside, waiting for their slice of Neapolitan-style heaven. It is the kind of place that one is told about and then hesitates to tell more people lest the line outside never end.

The first and most vivid impression one has of Piraeus is its port: bustling, ugly and uninviting. Just a place you have to endure in order to get to your destination, usually a beautifully serene Greek island. Piraeus, however, is definitely an exciting place for anyone looking for a culinary adventure, as it is a melting pot of cultures with many interesting places hidden in the backstreets, away from tourists. The whole area next to Hadjikyriakeion for example, a girls’ orphanage built in the 19th century, is well known to locals for its humble, yet high-quality tavernas, serving fresh fish and simple meze all year round.

In Shanghai, wet markets hold the telltale signs that spring is finally upon us. Stalks of asparagus as thick as a thumb spring up first, alongside brown and white bamboo shoots so freshly pulled from the earth that dirt still clings to their fibrous shells. But the most exciting spring green is fava beans (蚕豆, cándòu), also known as broad beans. Their short season in Shanghai – usually just about four to five weeks – means they’re in high demand, and stalls are filled with workers shelling the labor-intensive beans by the bushel.

A Jun grills up more than just seafood at their Shouning Lu shop. These enoki mushrooms are powdered with four types of pepper before being thrown on the fire.

Lisboetas can’t get enough of fish and seafood, and the annual Peixe em Lisboa festival celebrates that love with an abundance of food-centric activities. The main event every year finds a handful of Lisbon’s top restaurants competing against each other to see who can create the top fish dish. There is also a food market with some 70 displays and daily events and workshops. It’s a chance to taste some sublime culinary creations and to meet creative local chefs and small-scale food producers from different regions.

The 20th century saw millions of African-Americans leave the South for cities in the North in what is called the Great Migration. And with them, they brought their food traditions, and they opened eateries and groceries and other businesses to serve these rapidly expanding communities. In Queens, African-Americans settled in Flushing, Corona and Jamaica. Today, even with the influx of many new immigrants in recent years, Jamaica continues to be home to many African-Americans. Byron Lewis, an African-American pioneer in multicultural advertising and founder of UniWorld Group, grew up in Queens. His parents’ families both traveled from the South during the Great Migration, ultimately settling in South Jamaica, where Byron, the oldest of six, his parents and grandmother lived on Pinegrove Street from the 1930s on.

Er Guang Wontons serves up steaming wontons well into the evening every night. The pork-stuffed dumplings come slathered in peanut chili sauce, as all late-night snacks should be.

We could devote a weekly column to the culinary treasures of Istanbul’s polyglot Aksaray district and probably never have to worry about running out of things to say. The area is jam-packed with places to eat, and while we've written about many of them, Aksaray just keeps on delivering. Having previously covered the Syrian, Georgian, Azerbaijani and Uighur restaurants that make Aksaray a true patchwork of culinary destinations, our most vulnerable soft spot still lies in the strip of kebab restaurants inspired by the cuisine of southern Turkey’s Hatay and Urfa and located adjacent to the metro station.

The working-class area of Brahami has never been Athens’ hottest gastronomic destination. It is a mostly residential neighborhood, halfway between the city center and the exotic beach-loving southern suburbs. Like most of the city’s suburbs, in the not-so-distant past, this area was once made up mostly of fields. Now formally named Agios Dimitrios (St. Dimitrios, after St. Dimitrios’s church), it has a vibrant local market. It’s also home to Remoutsiko, a family-owned, family-friendly taverna focusing on meat. Housed in an old converted barn, the restaurant has been around for some 30-plus years.

For more than six decades now Café La Habana has served great coffee from the state of Veracruz and also sells the beans by the kilo. As in many Mexican restaurants, it offers café lechero, which is one or two shots (depending on the customer’s preference) of very strong espresso in a large glass that is then filled up with hot milk. One of our favorite drinks here, however, was the café bombón (roughly translated as “marshmallow coffee”), a cortado double espresso shot with ground coffee sprinkled on top.

After midnight deep in the heart of Beşiktas, these two gentlemen can be found slinging grilled sandwiches of thin, sliced sucuk, peppers and tomatoes. It's one of our favorite street snacks, and one of the perfect follow ups to a cold one or four.