When Edu, owner of the Barcelona wine bar Celler Cal Marino, was growing up in the 1980s in the neighborhood of Sant Antoni, he would confuse Rafel Jordana with the iconic German soccer player and coach Bern Schuster (“Schuster is in the bar, daddy!”). Jordana, owner of the bodega that bears his name, is not so famous internationally, but he is undoubtedly one of the icons of Sant Antoni and of the old-school bodega-bar culture in Barcelona. La Bodega d’en Rafel has served as a location for a number of films and television series (such as “Cites,” the Catalan version of “Dates”), a subject of many articles and profiles and an important touchstone for a larger community that connects Barcelona locals with their identity.

If it weren’t for the dozens of brightly lit signs and paper lanterns promising libations of every sort, you might mistake the two narrow alleys alongside the train tracks on the northeast side of Shibuya station for a derelict apartment block. In reality Nonbei Yokocho (AKA Drunkard’s Alley) is one of Tokyo’s few remaining yokocho (side street) bar districts. Like the much larger and better-known Golden Gai in Shinjuku, Nonbei Yokocho is a collection of aging and tightly packed microbars. Each watering hole is scarcely more than a few square meters, and if longtime regulars aren’t taking up the scant floor space, newcomers may try any number of doors before they find an empty seat.

In Istanbul's iconic Haydarpaşa train terminal, the door of a crowded restaurant and bar opens to beams of sparkling light streaming across the Marmara Sea coast. Trains haven't departed Haydarpaşa for nearly three years while the station undergoes extensive renovations, but its restaurant, Mythos, is still open and popular as ever, a refuge for a faithful crowd of regulars, who come to drink at a train station even though they aren’t going anywhere. Built in the first decade of the 20th century by the Germans and gifted to Sultan Abdülhamid II, the station is a handsome and prominent icon of the city, an imposing presence on the city's Anatolian shoreline.

It is 9 p.m. and we are packing our bags for a red-eye flight to Poland when I realize we have no chacha, Georgia’s otherworldly elixir of distilled fermented grape pulp. We never, ever travel without chacha, and there is no way we’re going to buy over-the-counter, factory-produced product – and not because it’s over-priced. Chacha is a potion brewed by the hands of masters over wood fires in hammer-battered stills sealed in a paste of dirt and ash. Without the human touch – the artistry – chacha is just a soulless, liver-grinding liquor. I make the call. Andria deals in wine, chacha and religion from a devilish little cellar in Tbilisi’s old neighborhood of Sololaki.

The warren of streets surrounding the current Tsukiji Market – Tokyo’s main wholesale market – are filled with sushi joints, ramen stands, coffee shops and assorted other restaurants tucked between the stalls and knife makers. Walking around during morning hours one could often wonder where the people who work inside the market have their meals. The gentrification of Tsukiji has brought such an influx of tourists that the early market is now closed to outsiders. Visitors are limited to the outer parts of the market and the food stands. Restaurants are jammed. Beginning at 3 a.m. workers drift into the heart of the market and begin to set up for the 5:30 a.m. tuna auction.

June is probably Lisbon’s most euphoric month, due to the city’s biggest street party that celebrates the patron Saint Anthony. Though the festival officially takes place on June 12-13, the party runs all month long, especially in Alfama, Mouraria and Graça. The smoke of sardines grilling, colorful decorations, makeshift neon fairgrounds and pimba music blaring from outdoor speakers enliven the narrow roads of these traditional neighborhoods. The bedlam isn’t for everyone, however, and for those who want to find a quieter spot that still celebrates fresh, seasonal fish, Largo de Alcântara is a good alternative. Located in the western part of the city, between Santos and Belém, this zone is a concentration of cervejarias and marisqueiras.

In Istanbul, there is a single neighborhood where one can find Uzbek mantı, imported Ethiopian spices and hair products, smuggled Armenian brandy, Syrian schwarma and sizzling kebap grilled up by an usta hailing from southeast Turkey’s Diyarbakır. Kumkapı – a shabby seaside strip of century-old homes, Greek and Armenian churches and residents from a vast array of countries that most Americans couldn't pick out on a map – is far and away the most diverse place in Istanbul. Nowhere else comes close. In perpetual motion, Kumkapı is home to a rotating cast of eclectic restaurants that cannot be found anywhere else in the city. Many of these open and close before we can squeeze in a second visit.

As an electrician in the Galeão international airport, Emerson Gama responded to emergencies like exploding transformers. But in his spare time, he was becoming a self-made expert on Latin American mythology, tropical ecology and sustainable resource management. These passions led him to quit his job four years ago; since then, Gama has become the Rio de Janeiro chocolatier with the most dedicated cult following. Only a few South Zone specialty stores carry his Quetzal chocolates, and where they come from is largely unknown, both to the clients on the long waiting lists for deliveries and to Gama’s own neighbors. The “secret” source?

As one approaches the central square of Kalyvia, a small village only 10 minutes from Athens International Airport, the irresistible smell of grilled meat fills the nostrils. The whole area is packed with traditional grill houses, and many Athenians will make the 45-minute drive just to enjoy a meal there. The oldest taverna and one of the most famous is Kollias, which still boasts the traditional butcher shop that gives these grill houses their Greek name (hasapotaverna, or “butcher taverna”). Anastasios Kollias opened the place in 1930 just up the road, but it gradually became too small to accommodate the growing clientele, so it took its current spot on the square in 1991.

Istanbul’s Aksaray district is a difficult place to get to know. It's probably the most diverse district in all of Turkey and with a very high turnover rate. Those Georgian ladies you saw dragging an overstuffed plaid duffel down Buyuk Langa Caddesi yesterday? They might be halfway to Batumi by now. The Syrian family by the bus stop? They may be on their way to meet a man in Izmir about a boat. Who knows? Aksaray’s unknowableness makes some locals uneasy; there's got to be mischief in all that motion, with all of those foreigners. Such is the stigma of Aksaray, den of thieves.

Rego Park and Forest Hills are home to much of Queens’ Central Asian Jewish diaspora. The neighborhoods comprise two main thoroughfares, 63rd Avenue (which changes to 63rd Street) and 108th Street. Both roads have a range of markets, restaurants and bakeries catering to local tastes. Here are a few notable addresses. Queens Gourmet Bazaar Food Brothers Yusuf and Juda Saz run this long, narrow market that is filled with Persian staples. Mini barrels of nuts, seeds, dried fruits, several Samarkand raisin varieties as well as fruit molasses, barberries, and other provisions in cans and glass jars cover the floor and walls. The brothers make some of the ready-made food in-house.

The era of Portugal’s seafaring might was so long ago, it seems almost like a myth – one still patriotically related by locals today. Gastronomic evidence of the country’s imperial past remains, however, particularly in Lisbon, where Angolan, Brazilian and Goan eateries can be found among the many other restaurants serving non-Portuguese food. Yet, despite Macau being under Portuguese control for around four centuries, passing into Chinese administration only in 1999, Macanese cuisine is still a mystery. Lisbon has yet to see even one Macanese restaurant open. There is a place here, however, to eat food from Macau: a cultural association in between Alvalade and Areeiro on a main road that leads to the airport, far from Lisbon’s center.

The triangle of Kurtuluş, Feriköy and Bomonti represents an Istanbul on the verge of fading away. Though still inhabited by significant numbers of Greeks, Jews and Armenians, there are more local churches and synagogues than are used by the remnants of those diminished communities. The numerous schools, houses of worship and cemeteries are relics testifying to the cosmopolitanism that once defined this segment of inner Istanbul. Another nostalgic quality of the area is its small-business culture, still thriving, yet on the verge of a major shift.

The small, spicy piripiri, or African bird’s eye chili, is one of Portuguese cuisine’s most unexpected ingredients, one that has travelled thousands of miles across many continents to find its place there. When the Portuguese began navigating around the globe as early as the 15th century, spices like black pepper and cinnamon became some of the most important and expensive goods on the market. Piripiri didn’t reach quite the same renown, but they have influenced many cuisines in their travels East. Initially they were taken from Brazil to Africa, where they thrived. After Vasco da Gama established the maritime route to India, the Portuguese introduced the peppers to Asia, namely India, Thailand and Malaysia.

They weren’t easy to spot at first: tiny green shoots with reddish roots, scarcely an inch high, poking out of the mud along the banks of a brackish stream near the Aegean town of Alaçatı. From these unpromising beginnings come a dish known to nearly every patron of a Turkish meyhane: nutrient-rich deniz börülcesi (samphire), typically served boiled and dressed with olive oil, lemon, and garlic. The simple word ot, which translates to “herb” or “weed,” doesn’t do justice to the important – and delicious – role these wild greens play in the cuisine of Turkey’s Aegean region. Though most commonly served as zeytinyağlılar, dishes “with olive oil” like the classic deniz börülcesi salad, their versatility was on full display at the recent Alaçatı Ot Festivali, an annual celebration of all things leafy and green.