“The people with permits, they are not working. We vendors on the streets, we need more permits,” yelled Mehdi, a New York street vendor of Bengali origin, at a recent protest for more permits. Street vending in the city – in particular food vending – is largely the domain of immigrants like Mehdi, seemingly an easy way to start earning an income. But selling food from a street cart is no easy ride. Sean Basinski, Director of the Street Vendor Project, which advocates on behalf of street-based sellers, says food vendor licenses are relatively easy and inexpensive to acquire. There is no cap on the number of food licenses issued. There’s a catch, though.

At 10 a.m., Juan Trenado, head of cheese production at Finca Subaida, and his team had already been toiling for several hours. They moved efficiently through each step of the artisanal process, expertly crafting block after block of the famous Queso de Mahón on the Mediterranean island of Menorca. “By law” – Mahón has a protected designation of origin (D.O.P.) – “the cheese could include a little sheep’s milk, but ours doesn’t,” Trenado told us, as he directed a gushing stream of watery cheese curds from a wide hose into a big, waist-high stainless steel vat. Slowly, the vat filled nearly to the brim, and Trenado, along with Mònica Mercadal, Head of Cheese Maturation, and Ramon Alonso, a new hire, carefully stirred the curds, breaking them into small chickpea-sized pieces.

No matter how long your stay in Mexico City, you’ll simply never “taste it all.” In the cycle of each day, from tamales, atole and morning licuados to midday comida and evening tacos, this great culinary city is in perpetual motion. Want Yucatecan cuisine? Oaxacan? Restaurants abound where you can experience the cuisines of other regions, but the street food, fondas and market stalls in general reflect the regional cuisine of Estado de México. To properly understand “Mexican food” and its regional diversity, get out of town. Just a little more than two hours from Mexico City’s Centro Historico is a Pueblo Mágico called Tepoztlán. The bus ride there passes through three national parks along the way.

“We say if you leave a Cretan pappou [grandfather] alone in the Cretan mountains, six months later you’ll find him fatter,” said dietitian-turned-restaurateur Panayiotis Magganas. He smiled wide. “Our land is incredibly rich.” The fertility of Greece’s largest island is part of the inspiration behind Peskesi, his restaurant in old town Heraklion that showcases the diversity of Crete’s cuisine through recipes he says are slowly being forgotten. “Even people from Crete don’t know some of these dishes,” he said. Set in an intricately refurbished Byzantine-era mansion, the restaurant still retains some of the charming details of the once-collapsing space, including a 100-year-old lemon tree that is the centerpiece of one dining room.

We are sure that many parallel universes exist within the labyrinthine Grand Bazaar of Istanbul, one of the world’s biggest and oldest covered markets. The easiest one to access is a world of Prada knock-offs, Minion keychains and leather-bound menus presented with “Please, monsieur, fresh fish, Turkish kebab, hola!” This is the world constructed for foreign tourists, but step off the main streets and into the bazaar’s tiny arteries, and, as if stepping through a magic wardrobe, you’ll be transported into the local life of the bazaar.

Queens these days is New York’s street cart central. According to the Street Vendor Project, which advocates for vendor rights in the five boroughs, the largest concentration of street vendors with licenses lives in that borough. This concentration of streetside sellers is easy enough to see on six-mile-long Roosevelt Avenue, which runs through six of Queens’ most ethnically diverse neighborhoods with a dizzying assortment of vendors catering to almost every taste and nationality, depending on the time of day. It’s not always easy work. At a recent monthly meeting of street vendors in Corona, Queens, the air was thick with grievances about the conditions they have to work under.

We were cutting grapes in a vineyard in eastern Georgia’s Kakheti region when two young men led a goat by a rope to a nearby tree and sliced its neck with a hefty hunting knife. Our lunch. They offered us a sliver of fresh raw liver with sardonic smiles, insisting it was the best part, but we passed and waited for the meat to be cut, skewered and roasted over the coals of tsalami, or vines. Served with bread, razor-sharp sheep cheese, whole tomatoes, cucumbers and rkatsateli wine, nothing could have been more Kakhetian. Since that harvest, we have been to scores of Kakhetian restaurants in Tbilisi, most of which were gratifying, but none had goat on their menus.

Cacilhas is the waterfront area of Almada, a small city reachable via a €1.20 ferry ride from Lisbon’s Cais do Sodré terminus. The district is heavily marked by its shipbuilding past and has an industrious character that, for now, is still preserved in its food culture. Right in front of its boat station is a concentration of traditional marisqueiras, typical seafood houses from where you can glimpse a sweeping view of almost the whole of Lisbon across the other side. The seafood platter is a must in any of these traditional spots. It is usually composed of stuffed crab, spiny lobster and giant prawns, accompanied by the classic amêijoas à bulhão pato – clams cooked in garlic, coriander, pepper and olive oil.

Athletes, spectators and everyone else gathered in Rio for the Summer Olympics will have no shortage of good eating options – and not just in the usual touristed areas. We’ve rounded up some of our favorite spots around town. CADEG The 100,000-square-meter market is divided into three warehouse-style floors, with a pavilion just for flower sales at the rear of the second floor. (The building sits on an incline, so you can enter from the street either on the ground floor or from behind the second.) The market is open 24 hours. Early mornings on Thursday and Saturday are the top time for flower shopping. Saturday afternoon is Cantinho das Consertinas’s Festa Portuguesa, with up to 1,000 attendees queuing for a host of salt cod dishes on the second floor.

Hidden within Mouraria’s maze of narrow streets is a tiny eatery offering usually hard-to-find fare in Lisbon: Goan cuisine. Situated a couple of minutes away from Martim Moniz – a revamped square that some years ago was named the multicultural core of the capital – this haven of flavors is a veteran of food diversity in the neighborhood. Tentações de Goa (“Temptations of Goa”) opened 20 years ago, when the multi-ethnic character of the area was more marginalized and not considered cosmopolitan, and when international restaurants were not as numerous and crowded as they are today. In the 1990s Maria, the now-busy owner of the small restaurant, was just a regular customer here, an avid fan of the elderly Goan woman who originally ran the place.

When you’re in the capital of Sichuan province, snacking is a way of life. Noodles made of bracken, wheat, chickpeas, mung beans and more, as well as tofu puddings and dumplings, make up the city’s “small eats” (小吃, xiǎochī) scene, served from what’s colloquially known as “fly restaurants.” A step above street food, these family-owned eateries are so called because they attract diners like flies, despite what might seem like a less-than-hygienic atmosphere, because the food is too good to miss. Find a hole-in-the-wall that has more diners than stools, and order one of these local specialties for a delicious meal.

Quintal Gourmet is the story of a doting son, one who's also delighted to be able to spend more time in his home, the City of God. Yes, the one from the movie. Carlos Vinícius, 29, a man as towering as he is smiley, looks at his mother, wiry and fast-talking Joyce, with a doe-eyed affection that seems to be deeply mutual. "I always followed my mom," he says. Before Quintal Gourmet, the two worked as domestic help, with Carlos Vinicíus a caretaker for an elderly woman. When his 72-year-old patroa passed away, he longed to spend more time with his own community rather than leave the favela each day for work.

Like so many other Greek specialties, bougatsa has a long history, in this case one that stretches all the way back to Byzantine times. Bougatsa is mainly a breakfast pie with a phyllo pastry made of flour, softened butter and oil that requires a great deal of skill to prepare. This pie is made and enjoyed all around Greece, but particularly famous are those made in northern Greece, especially in Thessaloniki and Serres. Turkish börek is a close relation, and similar pies are traditional to many eastern Balkan countries that were formally part of the Ottoman Empire. The tradition of bougatsa making really took off around Greece in the early 1920s with the arrival of the Greek refugees from Asia Minor and Cappadocia.

Perched on Lisbon’s highest hilltop, Graça has a villagey feel and is probably the best district to absorb stunning views over the Portuguese capital. Home to plenty of bakeries, cafes and two of the city’s most beautiful viewpoints, it does, however, risk irreversible damage because of the real estate boom affecting much of the city center. It is, for now, still a charming area, with an elderly population and remnants of working-class neighborhood life. To get to the panoramic views during summer, there are two options that don’t involve being stuck in a taxi: climbing steeply up through the irregular lanes of Alfama or Mouraria, or following the route of the iconic and crowded tram 28.

Take the plunge into the high-volume hubbub of Tbilisi’s famous Deserter’s Bazaar and you’ll come under a three-senses assault. The piquant aroma from the spice stalls, a butchers’ shouting war and stalls swinging with burgundy-brown, candle-shaped churchkhela sweets. But on one side of the market building, there’s a small slice of calm – in the long corridor where the cheese sellers work. Selling homemade cheeses from across the country, delivered fresh every day, is a more relaxed and deliberate business. You’ve heard of the Slow Food movement. Perhaps it’s time we were more specific and talked about “slow cheese.” Here, the cheese sellers prefer to wait for the customers to come to them.