This story starts with a hamburger, a juicy, perfectly grilled patty between a pair of fresh, no-frill homemade buns and the standard trimmings. As burgers become part of the culinary landscape in Tbilisi, we find that many cooks have a tendency to get too slick with a dish that loathes pretension. But this place, Burger House, nailed the balance between originality and straightforwardness. While sopping the drippings up with finger-thick fries we saw a hamburger story in the making and filed the idea away in our bucket list of food tales. A year or so later, walking down Machebeli Street in Sololaki, we saw a little basement joint named Salobie Bia with a Gault & Millau (a French restaurant guide) sign above the door and decided to investigate further. Several lip-smacking meals later, we learned that the chef and co-owner of this place is the same guy who was responsible for those impressive burgers.

This is a story that starts and ends with the land. First there was the father, Spyros Vracha, a farmer who owned fields nearby Chalandri, now a middle-class suburb around 8 km north of downtown Athens. His crops supplied the kitchens of the tavernas in the area, which until the 1980s was dotted with villas, rather than the apartment blocks of today. Before it closed down almost 30 years ago, Ta Marmara (“The Marbles,” so called because of Chalandri’s many marble suppliers and workshops) was one of the tavernas that Spyros supplied. It was owned by Stavros and Athena, Spyros’ neighbors.

It was our first Tbilisi summer stroll down the city’s main drag, Rustaveli Avenue; two sweaty, newly arrived pie-eyed tourists tripping on the 2001 reality. There were billboards advertising the recent kidnapping of a Lebanese businessman, policemen in crumpled gray uniforms extorting money from random motorists with a wag of their batons, and at the top of the street, a former luxury hotel looking like a vertical shanty was full of displaced Georgians from Abkhazia. Parched and cotton-mouthed, we entered a café of sorts for cool respite. The room had high ceilings, was stark and all marble-tiled, including the long, wide bar. A splendid social-realism mosaic of women, grapes and wine was laid into the back wall. The counter was decorated with a few tin ashtrays and a spinning rack holding several tall cone-shaped beakers filled with technicolored syrups.

On a drizzly, gray December afternoon, everything appeared to be business as usual at Istanbul’s Şahin Lokantası, a tradesmen’s restaurant in the heart of Beyoğlu that has been open for just over half a century. It was 4 p.m. and well after the lunch rush, but all the tables on the first floor of the small restaurant were occupied. We asked a lone diner if we could sit across from them, and they warmly obliged. Saying no would have been out of the question, this is just how things are at a place like Şahin Lokantası, an institution of lovingly-cooked classic Turkish dishes that have attracted a crowd of loyal customers over the decades that aren’t afraid to share tables with strangers.

In Sukhumi, the capital of Abkhazia, there is an old pier with a sorrowful rusting shell of a café poking out over the Black Sea. What had been a dining room is a vacant space that mostly seems to serve as a public urinal, while upstairs a kiosk-sized café serves Turkish-style coffee, beer and snacks with plastic tables and chairs for locals who bitterly recall when the café was one of the most happening spots in Sukhumi. Georgians and Abkhaz dined, drank and danced together at the café, called Amra, until war erupted in 1992, and these friends and neighbors began killing each other. Within a year, much of what had been the capital of the Soviet Union’s “Red Riviera” was destroyed and as the Abkhaz advanced, some 250,000 Georgians were forced to flee their homes, not realizing they would never be able to return.

You are motionless, stuck in a traffic jam after a long day at work while your stomach growls. You know the rest of the family will be hungry when you get home and that the fridge is empty and sad. Shopping and cooking is out of the question, so you turn onto a Vera side street, zig-zag through one-way lanes to Tatishvili Street, double park, and run into a tiny gastronomic oasis that has been saving lives like yours for nearly a decade. Its name is Tartan. Located in a step-down ground-floor apartment, takeout cafeterias don’t get homier than this. The front room is taken up with a long counter of refrigerated display cases half filled with enough ready-made dishes to lay down a feast when you get home.

In the late 19th and early 20th centuries, Italians – particularly southern Italians – immigrated to the United States in droves. Seeking their fortune in a distant land, they boarded ships with cardboard suitcases containing only a few clothes. But there was no shortage of good food in those suitcases: bread, cheese and even soppressata, cured pork salami made with the best pieces of the pig (and thus low in fat content), a perennial favorite in southern Italy. Alas, once they arrived on American soil after the long journey, their soppressate were seized because of a law prohibiting the import of cured meat, among other meat products (a ban that still exists today).

The seaside district of Chiaia, perhaps best known for Via Caracciolo, a boulevard with sweeping views of the Bay of Naples, is the most elegant neighborhood in Naples. Long the seat of the Neapolitan aristocracy, the area is studded with Art Nouveau palaces, elegant boutiques, and Villa Pignatelli, a house museum with an impressive art collection. But our favorite corner of the neighborhood is Piazzetta Ascensione, a quiet little square at the top of Via Ascensione (the Latin phrase nomen omen, “the name [is] a sign,” applies here, so be ready for a climb). It’s so dear to us in part because there’s a small, charming restaurant just off the square, one with a very distinctive name: Cap’alice.

In early September and October, Athens – just like many other cities around the world – sees an influx of young people leaving home for the first time to spend the next four years in intellectual pursuits and drinking coffee. Few among them are as concerned with what they’re eating as they are with other, seemingly more important matters, and so Greek student life is usually associated with deliveries of souvlaki, pizza and other minor domestic disasters. But for young people eating on the cheap, fast food doesn’t have to be the only option; local restaurants often offer student specials this time of year.

Daiji Takada, owner of Chabuzen, peeks out over the counter from the kitchen, which has about a meter-long strip of standing space for one at most. The interior of this narrow restaurant on the very fringes of the hip neighborhood of Shimokitazawa in western Tokyo isn’t much more spacious. Two low tables on tatami provide enough room for around six to squeeze in, and there are two stools at the counter – although occupying those spaces would almost certainly prevent anyone from getting out the door. With the surety of someone well-used to playing human Tetris, Takada deftly steps out and expertly delivers a plate of gyoza onto the table. He has just made these lovingly by hand and cooked them in a small, plug-in fryer.

Speed down the National Road till you’re in sight of Rendis Market, then follow the trucks off the highway and into a vast depot of concrete sheds. Though the trucks are there to pick up and deliver fruits and veg from all over Greece to supermarkets, grocers’ and farmers’ markets, we pulled over and started shop-hopping. Rendis, an industrial district of small factories, warehouses and train yards on the west side of Athens, has never been an area one would go for pleasure.

On our Xochimilco culinary excursion in Meixco City, we learn about the chinampas, and how chinamperos are dedicated to keeping Xochimilco’s historic and world-renowned agricultural system afloat.

“We want to show people what Greek cuisine is really like. It’s not just souvlaki, gyros and moussaka. So in July and August when we’re closed, we travel all over the country looking for recipes, and because we love Greek wines too, we find recipes that go with them,” Xenophon says. We took a long time studying the menu – nibbling on their own olive bread – because even the dishes that sound familiar are not always what they appear to be. Take, for example, spanakopita (spinach pie). Here, it’s actually a salad. Moreover, their cheese dip, myttotos, made of three white cheeses plus black garlic, “goes back to the time of Hippocrates,” and the liver with apples, a combination we’ve never heard of, is a recipe from Karditsa in the northern Greek region of Thessaly.

The red storefront and Cyrillic lettering made it clear this was not just another kebab shop. Hesitant at first, we scouted around the outside – the restaurant is tucked into a side street, flanked by a shipping office and a construction site, and does not appear to exist on Google Maps. The menu, written in dry erase marker on a board hanging from the wall, was entirely in Mongolian. Nevertheless, armed with the names of a few traditional Mongolian dishes – khuushuur (a sort of meat-filled empanada), mantuun buuz (dumplings) and tsuivan (noodle stew) – gained from some cursory YouTube research, we sheepishly approached the counter. As we attempted to order, our host smiled. “I’ll make you something, don’t worry,” she assured us, and ran into the kitchen.

Where the A train dead-ends at Lefferts Boulevard, Liberty Avenue stretches on into the heart of the enclave known as Little Guyana, part of the larger Richmond Hill neighborhood. To most Americans, and even New Yorkers, this population remains obscure. “People don’t know who we are,” says Lakshmee Singh, a talk show host and community leader in Queens, Richmond Hill, once a predominantly German and Italian neighborhood, has seen a steady stream of Guyanese immigrants since the 1970s. Today, it’s home to the largest Guyanese community outside of Guyana itself, with Guyanese immigrants representing the second largest foreign-born community in Queens.