Editor’s note: As of this week, Rio de Janeiro joins Culinary Backstreets as our sixth city. We’re thrilled to have expanded to four continents, and are looking forward to sharing with readers our explorations of this exciting city's dynamic food scene. Like many things in Brazil's beachside, party-hard Carnival city of Rio de Janeiro, gastronomy has a hedonistic edge to it.

Editor’s note: This post wraps up our special series this week featuring our top street food picks in all of the Culinary Backstreets cities. As rapidly as Istanbul marches toward its modern destiny, street food in this city is still served the old-fashioned way, by boisterous ustas with a good pitch and, sometimes, a really good product.

Editor’s note: This is the fourth installment in our street food series this week, featuring dispatches on the best streetside eating in all the cities Culinary Backstreets covers. Before we get down to the business of discussing the best of Athens’ street food, a disclaimer: Athens is at a disadvantage when it comes to streetside eats. For one thing, a lot of venues – souvlaki joints, pizza parlors and even offal soup places – are open all night or even 24/7; they are just not serving on the street, though.

Editor’s note: This feature from Barcelona is the third installment in our series this week devoted to the top street foods in each of the Culinary Backstreets cities. In Barcelona, a great deal of eating is done in the streets. Sidewalk cafés line the plazas and paseos, often to the point that it’s difficult to tell which tables belong to which establishment.

Editor’s note: This feature from Mexico City is the second installment in our street food series this week, highlighting the best streetside eats in each of the cities Culinary Backstreets covers. 1: Pambazos The pambazo is a Mexican sandwich that’s similar in style to the more familiar torta, but not nearly as ubiquitous. Most commonly found at weekly street markets like Sullivan, pambazos are made with hard, white bread rolls soaked in guajillo chili sauce that softens the crust and gives it a warm, orange-red hue. Once dried, the bread is sliced in half and then filled with a generous portion of diced potatoes, chorizo, lettuce, sour cream and sprinkled queso fresco. The bread is quite fragile, so eating the concoction can be somewhat challenging. From the first bite the pambazo starts to disintegrate, and by the end we’re usually scooping up the heavy mess with our fingers. It’s all worth it, though, as the light hint of chili in the bread and the hearty ingredients inside give the dish the same satisfying and belly-filling pleasure that comes with a good bowl of thick stew.

Editor’s note: This week we are celebrating street food, in all its fascinating, delicious and sometimes offbeat forms. Each day, we’ll take a look at the top street foods in a different city that Culinary Backstreets covers. This feature from Shanghai is the first installment. 1: Shengjianbao A Shanghai specialty, shēngjiān mántou (生煎馒头) – or shēngjiān bāo (生煎包), as they’re known everywhere else in China – are juicy pork buns wrapped in bread dough, then arranged in a flat, oil-slicked wok in which the bottoms are deep-fried till they are crispy. Although shengjian mantou can be found on most street corners in the morning, we’re especially fond of the delicious misshapen buns at Da Hu Chun. A Chinese Time-Honored Brand (老字号, lǎozìhào), Da Hu Chun has been splattering grease since the 1930s and, nearly 80 years later, has six restaurants across Shanghai. The venue’s chefs use the rare “clear water” technique, frying the pinched side of the dough face-up to create little Frankenstein buns that might not be as photogenic as the more common “troubled water” variety, but that have a thinner skin that gets extra crisp – and we’ll sacrifice good looks any day if it means better flavor.

The sap of the spiky maguey plant has long been used by the indigenous peoples of Mexico to prepare pulque, a milk-colored, viscous drink that has roughly the same alcohol content as beer. When they arrived in Mexico, the Spanish were introduced to pulque. Used to imbibing harder stuff, however, the conquistadors experimented with distilling a mash made out of the maguey plant, in the process inventing the beguiling spirit known as mezcal. Previously a liquor considered the province of the poor and working classes, mezcal has in recent years become one of the trendiest and most popular alcoholic drinks in Mexico, with more than 150 different brands now on the market. (Tequila, made from blue agave – a kind of maguey – and produced within a specific region of Mexico, is the best-known member of the mezcal family.) The rise in mezcal’s popularity has led to a proliferation of mezcalerías, wine bar-like spots that specialize in pouring the drink. In Mexico City in particular, mezcalerías have popped up in nearly every neighborhood, and their numbers keep growing.

Drinking báijiǔ (白酒) always brings us back to our first illicit taste of hard alcohol – a shock to the system, going down fiery and leaving a shudder-inducing aftertaste on the tongue. And just as many first-time drinkers are left wondering where exactly the attraction lies, the same thing is true for baijiu – at least, until the aftereffects start to kick in. In fact, even the Chinese believe that one needs to drink 300 shots over time in order to truly understand the appeal of baijiu.

Dear Culinary Backstreets, My husband and I are planning a visit to Istanbul with two little ones in tow. We love to be adventurous with food and want to explore the city’s culinary scene, but are also a bit concerned about finding “child-friendly” places to eat. Do you have any recommendations?

Forget about Christmas. In Greece, Easter is the main event, one where food, naturally, plays a starring role. It is also very much a holiday celebrated in the countryside: most Athenians go back to their villages during the holiday to be with their extended family and enjoy the Easter-related culinary delights of their home region.

The idea behind the “Migrant Kitchen” lunch series, first organized in Istanbul this fall by Istanbul Eats and Culinary Backstreets, is simple: get locals to sample the food of some of the immigrant communities living in their city and, through that experience, to learn more about those often invisible communities. In Istanbul, the series gave locals a taste of some fantastic Cameroonian, Liberian and Ethiopian delicacies.

Dear Culinary Backstreets, I heard from some friends that everyone smokes in restaurants in Athens, despite the fact that it is not officially permitted. What is the situation, and is there anywhere we can dine without being exposed to smoke?

In 2008, Shanghai’s noodle scene was dealt a mighty blow. A Niang, a granny from the ancient seaport of Ningbo who was famous among local foodies for her seafood noodles, was forced to close her streetside shop after being diagnosed with kidney disease. Over the past few decades, she’d gained a loyal following; her friendly, wrinkled face was a common sight in the dining room, as she often wandered through the hordes of hungry diners to say hello to regulars or wipe up a splash of spilled soup.

In Barcelona, Valentine’s Day is no big deal. On the other hand, on April 23, you had better remember to buy a flower for your sweetheart. La Diada de Sant Jordi is one of the most important holidays in Catalonia, honoring its patron Saint George. The Catalan tradition – inspired by the legend of Saint George’s chivalrous slaying of a dragon to save a princess – is for men to buy roses for women and, in return, for women to buy books for men.

Considering Athens’ position as a top tourist destination, it may come as a surprise that it is only recently that local museums have decided to up their game when it comes to their dining offerings. Worldwide, a good restaurant and café are now considered part of the whole museum-going experience, but it took a little time for Athenian museums to catch on to that, though catch on they have.