In a city with no shortage of postcard views, Bar Urca’s may get the title for most picturesque in Rio. The eponymous residential neighborhood where the bar is located faces Guanabara Bay, where a colorwheel of boats and yachts bobble on the slow waves leading up to the seawall. Across the bay, the iconic Christ statue watches over everyone from atop Corcovado peak behind the neighborhood of Botafogo.

The eyes of Tacacá do Norte’s harried staff widen as yet another customer arrives during the lunchtime rush. The bedroom-sized snack bar can barely hold one line of chairs around its bar but they have somehow managed to squeeze in two. Impatient regulars shake hands and whistle “psst” to the young men staffing the establishment, who gingerly hand steaming pots of shrimp soup and freshly puréed juices over the packed bar.

The history of Oaxacan food is deeply linked to the concept of adaptation. Our culinary identity has many chapters: the Mesoamerican native period, the colonial reign of Nueva España and the Mexico of the 20th century, which received another wave of immigrants who brought their gastronomic traditions and let them combine with the native and more tropical ingredients of these altitudes. That is the story of the salchicha ejuteca, a European style beef sausage that unexpectedly became one of the most desired foods on the Oaxacan snack table. While traditional corn-based products are a signature of Oaxacan cuisine, the salchicha ejuteca is an underestimated traditional element in the state’s food landscape. “Nobody knows for sure where the salchicha comes from.

There’s one thing about the very popular Copacabana bar Pavão Azul that remains a mystery, even after 60-odd years of business: its name. Pavão azul means “blue peacock” in Portuguese, but even the owners don’t know where this curious name come from. Some customers who have been frequenting the bar since it opened in the 1950s say that it was named after the bar in the movie “Casablanca” – except that that place was actually called the Blue Parrot. What’s not a mystery is the bar’s popularity. Once just a regular old botequim – a small bar serving simple food – Pavão Azul was discovered by food critics thanks to its patanisca.

Biting into a freshly-made globe of mozzarella, porcelain smoothness yields to a creamy interior and milk trickles down the cheeks. For any Neapolitan, this is true pleasure. And everyone knows the best spot for such an afternoon delight is at a cheese factory in the countryside – namely in the Caserta and Salerno provinces. There, some of the best Mozzarella di Bufala Campana DOP is shaped daily from fresh buffalo milk. For those of us stuck in the city center and craving that addictive bite of fresh mozzarella, one of Sogni di Latte’s two locations is our first stop.

One of the staples of Mexican cuisine (and of bar menus everywhere), the quesadilla can be found on almost every street corner and in every neighborhood market in Mexico City. Those served at Mercado San Cosme in Colonia San Rafael, however, redefine the quesadilla. Indeed, while this neighborhood market is far from being the city’s largest or most famous, it’s worth visiting just for a chance to eat at Quekas, an eatery housed in the market that makes some of the best quesadillas we’ve had in the city.

Back in 1966, when it opened on Avenida da República, one the main roads connecting the new avenues of Lisbon with the city center, Galeto caused quite a commotion. Lisboetas flocked to the huge snack bar, seduced by both the design – it was styled like an American diner – and the menu, which in those days seemed wildly innovative. Locals used to more conservative Portuguese fare were suddenly introduced to club sandwiches, burgers, mixed plates that brought together some wildly disparate elements and even Brazilian feijoada. Eating at the long counters while perched on a comfy seat was quite different from sitting on a stool at an everyday tasca. When combined with the avant-garde décor, swift service, and long hours (it was open late, until 3:30 a.m.), it felt like Lisbon was catching up with the dining habits elsewhere in Europe or the U.S.

De toda la vida is a Spanish expression that basically means “It’s been around forever,” and it’s a sure thing that the locals in Barcelona’s Gràcia neighborhood will utter those words if you ask them about Bodega Quimet. Opened in the 1950s by the Quimet family, the bodega (not to be confused with Quimet i Quimet, a popular Barcelona tapas bar) was passed down from father to son until 2010, when the younger (but nonetheless old) Quimet retired and brothers Carlos and David Montero bought the venue. David Montero had always worked as a cook and dreamed of owning his own place. However, after buying Quimet, instead of doing the renovations so typical of Barcelona bars that change hands (such as modernizing the furnishings or installing a huge flat-screen TV for showing fútbol matches), the Montero brothers made the somewhat unusual decision to keep everything, from the low prices to the décor, pretty much the same as it always had been.

Often overshadowed by the ubiquity, convenience, and utmost deliciousness of the classic pizza – in this case, specifically the street version called pizza a portafoglio (folding pizza) – is another typical Neapolitan street food whose history is linked to the royal family: the parigina. Commonly sold, already cut into generous rectangular portions, found in bakeries, simple eateries, and deli shops, this is a different take on the Neapolitan savory tradition. The parigina tantalizingly combines various layers of flavors and textures: a variably thick leavened dough at the base, a well-calibrated filling of tomato sauce, mozzarella cheese, and baked ham in the middle, and a thin and flaky puff pastry to cover it all.

When a streetcar ran down Queens’ Metropolitan Avenue in the first half of the 20th century, soda fountains like Eddie’s Sweet Shop were commonplace in big cities and small towns across America. Today, this hundred-year-old corner gem on Metropolitan in the leafy, Tudor-style enclave of Forest Hills is one of the last of its kind left in the country, and it certainly shows its vintage. On summer afternoons, Eddie’s still fills up with crowds of happy Queens kids, and the diversity of the clientele reminds you that fortunately, it’s not the 1920s anymore. The shop itself, though, is practically unchanged – every piece of equipment behind the counter, from the shiny Frigidaire to the tiny metal cabinet hand-painted with the words “hot fudge,” could be from a museum.

Naples has a lot of iconic eateries and shops, but one of the lesser-known city icons is the kiosk of the fresh-water-seller. Scattered throughout the city, the banks of the acquafrescai – some of which are very famous – sell various mineral waters and refreshments. These kiosks were born to provide relief in the summer months, and for that reason they are widespread in other southern Italian cities, particularly in the Sicilian cities of Palermo, Catania and Syracuse, where the coolness of a granita, a semi-frozen dessert made from sugar, water and various flavorings, counters the oppressive heat.

Luca Affatato opens the unmarked single shutter on via Battistello Caracciolo – a charmless street linking the Avvocata and Arenella hill boroughs, at a few steps from the Salvator Rosa Metro Art Station – most days at 7 p.m. If he doesn’t, it’s for two possible reasons: either he’s busy at a popup event at some other Neapolitan venue, or he has run out of his one-and-only dish – Asian-style dumplings – and needs time to make new ones. In any case, he warns his faithful patrons on Bop Dumpling’s Instagram feed, which is pretty much the only way to be updated about opening times, menus, events and a bit of Affatato’s private life, unless you have his mobile number – which many customers do.

After a morning spent walking around the Fontanelle Cemetery, the oldest ossuary in Naples, and the Sanità market, we believe that we have created enough of a calorie deficit to face a fried pizza – the original pizza, born before the more familiar oven-baked variety, and a universally beloved dish in the Neapolitan cuisine – with self-acquittal. And in the Sanità neighborhood, there’s no question that we’ll be seeking out the fried pizza of Isabella De Cham. The 26-year-old makes creative and high-quality fried foods in an elegant and polished restaurant, with a black-and-white color scheme – not quite what you’d expect for a fried pizza joint, although the familiar warmth is still there.