In Mexican cuisine, sweets are for the most part simple treats that are enjoyed at the park, market or beach, such as caramelized fruits and vegetables, blocks of nuts or amaranth seeds held together with honey, or small rice paper cakes filled with honey. The common denominator of most of these sweets is their simplicity. When it comes to ice cream and other frozen delights, however, the country truly shines, with an astounding variety of cold treats to please sweet tooths of every persuasion. The range of frozen desserts found in Mexico City includes everything from raspados – ice shavings served in plastic bags or cups to which a flavor of choice is added – to Italian gelato served in some of the most sophisticated restaurants in town.

In Greece, where the land is mostly rocky and steep and the climate hot and arid, the olive tree thrives, and for millennia, olive oil has been as essential to Greek cooking as the gnarled, silver-leaved trees have been to its landscape. Greece is the third largest producer of olive oil in the world after Spain and Italy and the greatest in consumption per capita. Used liberally as a cooking fat for all manner of ingredients and preparations, as well as in its raw state to dress or flavor dishes, olive oil also plays an influential role in Greek baking, such as in koulourakia, twisted or coiled cookies, and paximadia, the twice-baked rusks that come savory or sweet.

There’s something special about Crete, Greece’s biggest island. The country’s most fertile region, it has a long history of food and wine production that stretches back to the Bronze Age, making Crete one of the most interesting culinary destinations in Europe. Bordered by the Aegean Sea to the north and the Libyan Sea to the south, the island is home to over 70 different edible herbs and wild greens, and local farmers produce a wide range of products, from Mediterranean staples like olives, tomatoes and eggplants to more tropical produce, such as mangoes and papayas.

We hear it every time we bring up the V-word: “But it’s impossible to be a vegetarian in Rio!” Nonsense. Not only is it possible to eat an earthy diet here in Rio, it’s getting so trendy that carnivorous cariocas are increasingly forgoing their weekend churrasco (grilled meat on a stick) for the kaleidoscope of couve (collard greens), cogumelos (mushrooms), tofu and all of its soy brethren. While Rio de Janeiro’s vegetarian options are often lunch-only buffet-style joints (and we like those too), we’ve been intrigued by the rise of a few more boutique à la carte places. And we appreciate that Prana Cozinha Vegetariana is one of those that does not come with boutique prices.

One of the tenets of the Slow Food movement is that it’s impossible to make a really good meal out of industrial food. Of course certain ingredients can pass muster with diners even if they’re grown on an industrial farm. Yet sustainable farming has an obvious impact – it’s not just a matter of better tasting and healthier food but also environmental and societal benefits. In Barcelona, we are surrounded by a large number of independent, sustainable producers that, too often, are completely invisible. They work in nearby provincial areas such as El Prat, El Penedès, El Vallès, El Garraf and El Maresme that give forth a veritable cornucopia of food goods: vegetables, fruits, nuts, legumes, olive oil, cheese, marmalades, cereals, flours, honey, meat, fish, wine, vermut, beer and more. These producers work hard every day to remain independent and adhere to stringent standards of sustainability and quality.

For 2,000 years, people have flocked to the Abanotubani baths, whose hot sulfuric waters have long been fabled to possess magical healing qualities. The Persian king Agha Mohammad Khan soaked there in 1795, hoping to reverse the effects of the castration he suffered as a child. He dried off, found his conditioned unchanged and razed Tbilisi to the ground. While people continue to espouse the curative properties of the sulfur baths, we can only vouch for their powers to relieve stress, loosen up sore muscles and help poach the hangover out of you. It is the latter attribute that inspired the local chef Tekuna Gachechiladze to open a restaurant last year that might not cure erectile disorders, but is definitely designed to nurture alcohol-stricken bodies back to life.

At 2pm on most weekdays, slickly dressed business people stroll Mexico City’s trendy Juarez neighborhood, lending its streets an air of well-heeled, buttoned-up formality. The polished glimmer of their shoes marks them as the nation’s best and brightest, if not among its wealthiest. These are the white collar workers of the nearby Paseo de la Reforma, let out of their office towers for lunch. Many will choose to spend their breaks cradling greasy street tacos, craning their necks as they eat, careful not to stain or otherwise tarnish their smart suits.

Quick Bite: On this half-day introduction to Corona’s culinary essentials, we hit the streets on a Saturday, when the griddles and grills in this already lively neighborhood are working overtime and the street vendors come out in full force. To many, the Corona neighborhood of Queens is something of a mystery, a place you only pass over on the elevated tracks of the 7 train as it hurtles towards a Mets game or the restaurants and food courts of Flushing.

Something special happens when the sun goes down. Night markets, whether in Southeast Asia or in the heart of Queens, inspire a thrill — we call it a sense of wonder — that brings boundless childhood summers to mind. We still feel it, on warm-weather Saturdays, when we ride the elevated 7 train to the Queens International Night Market. (It's a pain to park anything bigger than a bicycle near the market; we always take public transportation.) Many of the other passengers seem to be headed our way. Surrounded by fellow pilgrims, our anticipation builds as we descend from the train platform and march south. As we near the market grounds, and as the wind freshens and comes about, perhaps we catch the scent of sizzling meat.

Entering Central de Cacao, one might think it any other café in the hip neighborhood of Roma Sur. Sitting upon stools, customers hunch over their laptops, sipping from steaming mugs. A wide, beautiful geometric design hangs on the high wall behind the counter. To the left of the entryway, colorful products for sale line a stack of long shelves. But upon closer inspection, the sweet nature of the cafe and store reveals itself. The contents of the steaming mug: chocolate. The geometric design behind the counter: molinillos, or traditional Oaxacan chocolate whisks. The products on the shelves: all chocolate. Chocolate-infused honey. 100 percent chocolate bars.

These days, a good Portuguese-style savory pie is hard to find – even in Portugal. In a country with so many great examples, namely in Alentejo, Beiras or Trás-os-Montes, where pies (or empadas in Portuguese) are beautifully made, it’s disheartening that in Lisbon you’ll find mostly dull and dry versions or disappointing fillings within good pastry. Belmiro de Jesus, a native of Trás-os-Montes, one of the most remote and unspoiled regions of Portugal, always loved the empadas his grandmother would cook for special occasions or festive times of year, like Easter or the August village festival. So when he decided to open an empada-themed restaurant, he used hers as an inspiration but changed the format and developed a thinner pastry.

We spotted this jubilant fellow on our Old City walk in Istanbul trying to sell his mobile shop/bicycle. Any buyers?

Sergi de Meiá, in his own words, “started in cuisine the day he was born,” growing up as he did in his mother’s restaurant. He received his first cooking lessons from her and from a family full of chefs and cooks before heading off to cooking school at 14. Nowadays, his mother, Adelaida Castells, is still a fundamental part of the team at de Meiá’s restaurant and is in charge of the most traditional recipes they make. Those dishes are part of a concept dedicated to Catalan cuisine that is, de Meiá says, “evolutionary” and “determined by nature,” a tribute to local products, mixing tradition and modernity in the same pot and in a menu that includes a few historic recipes as well as vegan options.

Going out for a Georgian dinner in Tbilisi used to be a predictable, belt-popping affair. There were very few variations on the menus of most restaurants, all of which offered mtsvadi (roast pork), kababi (roast pork-beef logs), ostri (beef stew) and kitri-pomidori (tomato-cucumber) salad. To open a restaurant and call it Georgian without these staple dishes would have been as ludicrous as a coffeehouse with no coffee. In the past several years, however, young local cooks have been expanding the rich possibilities of Georgian cuisine to both much applause and a lot of finger wagging for blaspheming traditional recipes.

Order a plate of vindaloo in one of the many Goan restaurants around Lisbon and your local friend at the table may point out that the origin of this dish is, in fact, Portuguese. Even the name can be decoded back to the Portuguese vinho d’alhos (wine and garlic), he’ll say. But let’s be honest here, amigo, vinho d’alhos has about as much to do with Goan vindaloo as the croissant does with the cronut. Vinho d’alhos may have sailed off to Goa along with Vasco da Gama in the 15th century, but when it returned to Lisbon with Goan migrants in the 1960s and 70s, something had changed. It had gone Goan.