An aguas frescas vendor in the Xochimilco market stands at the ready behind his offerings: there were over a dozen different flavors on the day we visited. He served us an incredible lemonade with chia seeds, a very traditional (and delicious) pairing.

“What year did you marry your wife?” we ask Rafael Hernandez, known as El Negrito of Mercado Medellín, one Saturday afternoon at his vegetable stand. “I don’t know!” He breaks into uncontrollable laughter, “She knows though!” “What year did we get married, Gorda?” he asks the woman next to him. Her hair is tightly permed and her hands are ever-busy sorting vegetables and tallying accounts “I was 21 and you were 25, Negro – so more than 50 years,” Josefina says. Rafael, now 79, with a shock of white hair and an easy smile, happily bustles around his stand.

Has mezcal gone the way of avocado toast, an item that’s become shorthand for cliched hipster trendiness? If you think yes, a visit to Mis Mezcales in Mexico City’s Colonia Roma may be in order. There, you will find Omar Trejo sitting behind his unassuming makeshift bar, parceling out sips to the uninitiated and reminding everyone who stops by his small liquor store devoted to small-batch Mexican distillates that before it became a “buzzy” spirit, mezcal was an elixir heavily-rooted in the soils and stories of Mexico. As Omar makes clear to those who come in, every bottle of mezcal tastes different, even from the same brand, the same agave variety and same year. It’s one of the drink’s greatest strengths and probably one of the greatest frustrations for drinkers who expect the standardization of tequila.

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.

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.

Feta must be one of the world’s oldest cheeses, it’s certainly one of the most famous, and it’s practically never missing from a Greek table, no matter the time of day. A person might grab a chunk of this chalk-white substance for breakfast, crunch through layers of feta-stuffed phyllo for elevenses, put a slab of it on her village salad for lunch, have it for supper along with a vegetable casserole and then pair it with watermelon for a scrumptious dessert. The only other food that a Greek may be even more addicted to is bread. If you were to guess which nation boasted the most cheese eaters on the planet, surely you would say France, home to so many delectable and sophisticated fromages.

On our “Market Watch” walk in Mexico City, we learn about the different ingredients that are the building blocks of Mexico’s culture and its inimitable cuisine. Like at this stall, which is offering various types of nuts, legumes and – our favorite – toasted crickets.

You might not have heard of trahana, sometimes called rustic pasta, if you don’t possess a Greek grandmother. This humble food rarely turns up in tavernas, yet it is a staple, especially in the winter months, and the basis of many a comforting meal. In fact, it may just be the world’s first instant soup. Trahana, which is most often seen in small couscous-like pellets, represents a synthesis of wheat and dairy, making it more nutritious and tastier than ordinary pasta. Its flavor and consistency depend on whether the flour, semolina or cracked wheat is kneaded with milk, soured or fresh, or yogurt. Traditionally, the mixture would be shaped into balls or patties, dried in the sun until hard, grated into tiny granules, dried some more, and then stored in cloth bags, where it would keep for months, even years.

It’s one of those brisk winter days in Istanbul, when the weather is just warm enough for a walk outside but cold enough that you’ll eventually want to cozy up in a café. So we set out for a stroll in Kuzguncuk, a laid-back neighborhood on the Asian side with plenty of inviting spots. After a walk through the bostan (urban gardens), we head back to the main drag in search of a warm place to rest and refuel. Opposite a large Orthodox church, its bell tower piercing the cloudy sky, we catch sight of Pulat Çiftliği (Pulat Farm) housed in a beautifully restored three-story building. The name suggests some kind of organic grocery store, but as we step inside it quickly becomes clear that Pulat Çiftliği is much more than that.

We visit Mexico City’s markets to stock up on fruits and vegetables, but sometimes we opt for frutitas de leche, fruit-shaped sweets, instead. (Surely they count towards our five portions of fruit and veg a day, right?) Learn more about how the market works and the important role it plays in daily Mexico City life on our “Market Watch” culinary walk.

Just as moments in time can be captured by a photograph, to savor at a later date, so too can the freshest meats and produce – almost equally as fleeting – be preserved (albeit in a can) for enjoyment later down the line. Only we can’t guarantee that they’ll last as long, given how good they taste. Prevalent in various Mediterranean countries, including Spain, Italy, Greece, France and Portugal, canning offers a sustainable way to increase the shelf life of delicate seafood and sophisticated recipes. And while many associate conservas, foods preserved in cans and jars, with student life or basic survival fare, they are in fact experiencing a golden age in Spain.

Athens supermarkets devote many shelves to Greek chocolate bars, and there is no shortage of shops in the city that produce their own chocolates with different fillings as well as truffles, along with other types of sweets. But the past year has seen a chocolate renaissance of sorts: two shops opened which are dedicated exclusively to chocolate, joining a third, The Dark Side of Chocolate, an old-timer from 2011. What’s fascinating is that the owners are all young people in love with this magical, demanding substance, yet their creations could not be more different.

On our special five-day culinary adventure in Mexico City, we eat one of our meals on board a traditional flat-bottomed boat along Xochimilco’s Aztec-era canals that have been in use for more than 2,000 years and are now a UNESCO World Heritage site. The meal is prepared by locals using products from the chinampas, the area’s famous “floating gardens.”

When we embarked on the ferryboat to the South Aegean island of Kea at Lavrio, about an hour’s drive from Athens, we didn’t see any of the tourists that typically fill ferries going to the Cyclades in summer. Traveling with the summer winds just an hour further, we seemed to slip through an invisible door into a world at once very close but far away in ethos. Many wealthy denizens of Attica, the peninsula that encompasses Athens, have built their summer homes here in a style that deviates from the famous blue-and-white of the Cyclades, incorporating local stones and looking somehow traditional and modern at the same time, blending into the local landscape. A big aspect of this landscape – yet another surprise, the greenness of the island – is the thousands of trees that make up the ancient oak forest carpeting Kea, whose acorns are undergoing a felicitous revival as a staple of local economic – and even culinary – life.

Spurred on by rain and humidity, wild mushrooms hit the markets of Mexico City this time of year. An extraordinary variety of mushrooms are available, mostly culled from the wilds of the states of Mexico, Hidalgo, Morelos and Puebla, and chefs stop by the market every day to see what new goodies will appear.