The Athens food scene has been booming over the past few years. The increasing number of tourists, the growing optimism of investors who see a financial opportunity in the food industry, as well as an ever-growing pool of talented new chefs, cooks, baristas and bartenders have all contributed to this creative regeneration – not just of the food scene but of the city itself. There is a deeper interest in high-quality ingredients, which is why we’re seeing more and more farm-to-table and organic restaurants. Food trends are also making an inroad, hence the growing number of street food and vegan options – some of which are so good that they really deserve an award.

A guest arriving at a Greek home should expect an overwhelming array of traditional welcoming treats that will be presented upon their arrival, from coffee and cookies, to cakes, homemade liqueurs, loukoumi and more. But there’s one sweet something that has long been linked with hospitality and welcoming in any proper, traditional Greek home: glyko tou koutaliou, or “spoon sweet,” a type of fruit preserve whose roots go way back to ancient times. For centuries, preservation was a necessary part of the harvest – it was the only way to make excess fresh fruits and vegetables last for as long as possible.

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.

There has always been a bit of a rivalry between the two main cities of Portugal, Lisbon and Porto, which is well illustrated by an old running joke among some tripeiros (the name given to the people of Porto): whenever someone asks what is the best thing about Lisbon they will reply, “The highway sign that says ‘Porto.’” But it’s a healthy rivalry for the most part – football aside. Lisboetas, Lisbon locals, in general even tend to recognize that the food might actually be better in Porto and its surroundings, especially traditional dishes. While Porto does not benefit from the same multicultural influences that helped shape Lisbon’s restaurant scene, it is home to some very talented cooks with a knack for doing so much with so little.

It used to be that when you paid an unexpected visit to a Greek household, you would almost surely be offered a gelatinous and aromatic sweet called loukoumi – a little pillowy bite covered in powdered sugar. Likewise, a coffee at kafeneia, Greek coffee shops, used to be accompanied by a loukoumi, as the sugary treat complimented the dark brew. While loukoumi is not as commonplace nowadays, it is still a beloved treat in Greek homes, for it’s sweet enough to satisfy sugar cravings, but simple enough – the basic ingredients are water, sugar and starch – to be relatively low-calorie. And even if it’s not as popular as it used to be, it has certainly had a lasting impact: consider that the word “loukoumi” is used in the Greek language to mean something delicious in general, whether a nicely roasted piece of meat, a coveted object or a beautiful woman.

“Now we finally have light!” a vendor excitedly tells a customer, one of many similar exclamations we overhear while wandering around the new temporary digs of the Mercat de L’Abaceria Central. Formerly housed in a historic building on Travessera de Gràcia in the Gràcia neighborhood, the market and its 56 food vendors, 43 food stalls, 13 clothing and kitchenware merchants and two cafeterias recently shifted to a nearby location as renovation work begins on the original structure.

Japanese cuisine is often the art of quiet subtlety, and to that end, salt is one of its greatest supporters. The freshest of fish can be highlighted with a splash of the correct salt; cold sake drunk from fragrant cedar vessels is well enhanced with salt on the rim; and even tempura is frequently not dunked in sauce but instead sprinkled with salt by serious connoisseurs of fried delicacies. Salt plays a very significant role in Japanese culture and religion. It is a sign of purification. Thus most sushi restaurants mound salt on both sides of the entrance to show the place is clean and pure. Sumo wrestlers will throw salt into the ring before a match. Japanese people frequently throw salt over the entrance to their homes to purify their households. We’ve even seen people with packets of salt in their car.

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.

“I still don’t know where the siphon bottles for the vermut are,” says an employee of Marina, a small bar in the newly renovated Mercat de Sant Antoni. It’s clear as we’re walking around that the staff of the market’s few bars and its many vendors are still settling in and adapting to their brand new spots. At the same time, hundreds of visitors have been exploring the revamped market each day since its opening last week asking, “Where can we eat or drink something?” So far, that seems to be the question on everyone’s mind, particularly locals. But this is not another food hall, this is a proper neighborhood market focused on selling quality fresh produce and other food product

There are many legends and myths surrounding the Pyrenees. Some claim that the divine hero Hercules created the mountains by piling up rocks as a tomb for his love Pyrene, who had died in one of the area’s forests after being bitten by a snake. While a romantic story, the Pyrenees are much more than a mausoleum and a symbol of mythic love – they are also the birthplace of Basque culture and a disputed border between Spain and France, a place crisscrossed by Roman roads and sprinkled with Roman architecture, a key point in the Camino de Santiago (Way of Saint James) and a legendary land for the Catalans.

The resilient almond tree flourishes in a dry climate with very little water, which makes it an ideal tree for Greece, especially in the south and on many of the islands. So it’s no surprise that almonds have featured prominently in Greek cuisine and pastry making dating back to at least the 3rd century BC, or so historians believe. Today in Greece you’ll most likely find almonds in desserts or sweet treats. Since this particular nut generally symbolizes happiness, prosperity and good luck, it plays an important role in Greek weddings and baptisms, with sugared almonds and other sweets made with almonds, like amygdalota, being offered post-ceremony.

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.

Istanbul's Vefa neighborhood is home to a rich collection of historic treasures. Framed by the vast and beautiful 4th-century Valens Aqueducts, Vefa is in the heart of the old city but retains a sense of locality and rusty charm perhaps lost in the more touristy neighborhoods nearby. Among its institutions is Vefa Bozacısı, which has sold boza – a thick, fermented millet-based drink popular in the winter – since 1876. Immediately across the street is an establishment that has only been around for a few months but also specializes in another beloved local beverage, gazoz. Opened last year by Istanbul University economics student Mahmut Saklı, Sevda Gazozcusu is likely the only shop in Turkey that exclusively sells the drink.

A gloppy, meaty, cheesy brick served in a pool of sauce and with a mountain of fries: please meet the francesinha, the culinary pride and joy of the city of Porto. Today, restaurant billboards proclaim in many languages that they serve the best version in the world, revealing the genuine power of this artery-clogging combination that, incredibly, was originally conceived as a snack. We have to say it though: eating a francesinha is worth every last calorie. This dense sandwich, which is impossible to eat just with your hands, is often considered the lusophone version of the croque monsieur.

Between two simple slices of bread exists a mind-boggling array of possibilities – something not lost on Spaniards, who have turned sandwich making into something of an art form. In Spain, sandwiches go by different names depending on the kind of bread used and local custom. The type that’s generally called a bocadillo in Spanish and entrepà in Catalan traditionally comes on pan de barra, itself a broad category of bread, with varying dimensions, qualities and more specific names, including baguette, maybe chapata (ciabatta), depending on how round the bakery makes it, pistola (pistol) in Madrid and flautas (flutes) in Barcelona if it’s short and very thin.