Nakaochi appears to be a chopped-up mound of Japanese tuna, but it isn’t. It looks like it should be an inexpensive cut of fish, but it’s not. Instead it’s a rare delicacy, a one-of–a-kind culinary experience we can’t get enough of. Nihonbashi Maishi looks like just another restaurant grouped in the basement compound of the Tokyo Nihombashi Tower, but it isn’t. It appears to be an ultra-expensive establishment, but at lunchtime it’s not. It’s a favorite go-to place for true aficionados of Edo-mae sushi and nakaochi. Edo-mae sushi is considered the root of all sushi.

“I’m a vegetarian – what will I eat in Mexico other than beans and rice?” Taco-madness has so consumed the world’s view of Mexican cuisine that the traditional mainstays of the diet often don’t get the billing they deserve. Beans, corn, squash, chilies and tomatoes are grown together in milpa farms – a biodynamic system of agriculture. Anyone who has ever grown anything knows: if you let a garden grow naturally, you’ll have an abundance of leafy greens that most of us call “weeds.” Well, in Mexico, nothing edible goes to waste. Just as every bit of meat from an animal is used, so are those weeds and all the other tender leafy bits.

For every level of society inside and outside Mexico, cantinas serve as both toxin and tonic for drink, song, jocularity, wit, mayhem and mishap. Tio Pepe, now thought to be the oldest such bar in the old Aztec capital, has provided both in equal measure since way before it received its present name in 1878. The cantina is nowadays a refuge for Mexican politicians, as the nation’s state department and the city’s supreme court sit in front of it. On a Tuesday at noon, we found a huddle of operatives gathered in a booth arguing amid cocktails.

Abílio Coelho is a generous man, offering a smile to every customer while serving each of them the most traditional drink in Lisbon: ginjinha. He has spent 44 of his 63 years behind a counter serving the libation. Ginja Sem Rival, the bar he serves it in, like the best places, is a hole-in-the-wall, and the drink is made in-house. Ginja is the actual name of the liqueur, which is made from a sour cherry of the same name. The fruit might not be so sweet but is fortunately well suited to being turned into this smooth drink, which is enjoyed both as an aperitif and digestif.

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.

This delicious, pistachio dust-covered slice of Antep katmer is as decadent as it looks, and can be enjoyed on our Two Markets, Two Continents tour.

When the nationalist Kuomintang army retreated to Taiwan in 1949 after losing to Mao’s communist forces, the island experienced a sudden influx of immigrants from around Mainland China, many ripped from their homeland and moved into crowded, hastily-assembled housing complexes. These gave rise to tenement communities, called military villages (眷村, juàncūn). During the years after the war, these new immigrants kept the memory of their hometowns alive, recreating the dishes of their childhood but – out of necessity – using local ingredients and adapting the recipes. Out of this homesickness arose a new type of Taiwanese cooking called Military Village Cuisine.

Halfway between a French bistro, a Nordic café and a Spanish casa de comidas (a traditional small family-run eatery where the menu changes according to season and the market), Santa Gula is the perfect place to sin – gastronomically speaking – in Gràcia. Hidden in a small and peaceful square, Santa Gula, or Saint Gluttony, is truly heaven amid Avinguda Diagonal’s commercial buzz. This cozy restaurant with its wonderful outdoor terrace (set up in spring and summer) is without a doubt one of the neighborhood’s best well-kept secrets, attracting a crowd of faithful customers, from locals and area office workers to foodies from across the city.

Mexico’s Yucatán Peninsula was home to some of the most important Maya cities during pre-Hispanic times. One can still get a glimpse the glory of those cities in ruins such as at Chichen Itza, considered one of the seven wonders of the modern world. On the ruins of a smaller Mayan city, T’ho, the Spanish conquistadors founded Mérida in 1542; since then, the city has been the economic, cultural and gastronomic center of the Yucatán Peninsula. We visited the city recently and fell in love immediately. Thanks to its proximity to the harbor of Puerto Progreso and the importance of the henequen industry – which turned the fibers of a native agave plant into rope – Merida’s culture, economy and architecture grew dazzlingly from the 19th through the early 20th century.

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 & Out arrived in Beijing years ago to rave reviews, but the Yunnan restaurant only just settled in Shanghai, confusing homesick Californians with its name. Instead of Double-Double burgers and Animal-Style fries, it serves cross-the-bridge noodles (过桥米线, guòqiáo mǐxiàn) and fried potato balls (土豆球, tǔdòu qiú). While most Yunnan restaurants in China span the whole province’s cuisine, from tea leaf salads to crispy adzuki beans, In & Out’s menu is (mostly) specific to Lijiang, a city deemed a UNESCO heritage site that lies about halfway between Shangri-La and Kunming, the provincial capital, and is home to the Naxi and several other ethnic minorities