Shanghai’s farm country is closer than most residents imagine, especially when surrounded by the city’s seemingly endless forest of skyscrapers. But just beyond the spires is a huge, green oasis: Chongming. Somewhat smaller than Hawaii’s Kauai, this island at the mouth of the Yangtze River grows much of the municipality’s food supply. The government is pushing plans forward to develop the area with “eco-friendly” industries by 2020 but, as usual, has not provided many details on how these goals will be achieved. A stopping point for millions of migratory birds each year, the island (for now) has several wetland zones and ecological parks that are open to visitors, making it a worthwhile jaunt for those wanting to escape Shanghai’s urban jungle.

The quiet neighborhood where Makalo is located, right between Syntagma and Plaka, is home to some good restaurants (such as old-fashioned Paradosiako) and even to a strip of ethnic joints located on bustling Apollonos Street. Considering the area’s proximity to some of the biggest hotels in Athens and to the ultra-touristy Plaka, however, it’s rather surprising that not many visitors have caught on to the charms of Makalo, a local hangout with a fun vibe and great Greek-style cocktails.

Shanghai is a street food lovers' paradise, with carts slinging dumplings, pancakes, noodles, buns and grilled meats on sidewalks across the city, morning, noon and night. These are a few of our favorites. 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. 2: Guotie

Editor’s note: We regret to report that Charmant has closed. We’ve mentioned Charmant before on Culinary Backstreets, giving it a nod for its night-owl dining opportunities (it closes at 2 a.m.). But this restaurant tastes good all day long and has something going for it that few Shanghai restaurants have: consistency. After more than seven years of loyal patronage (not to mention the restaurant's 11 years of operation since opening in 2004) and Charmant’s split from its parent company, which runs the equally successful Taiwanese chain called Bellagio, we have yet to notice a slip in quality.

Shanghai offers a huge range of dining at every price point imaginable. Fortunately for us, cost is not necessarily commensurate with quality in this town; you don’t have to break the bank to eat well. In fact, some of our favorite eateries offer bargain set lunches. Mi Xiang Yuan Hidden down an alley, Mi Xiang Yuan, a Shanghainese joint owned by a local celebrity chef and his family, serves affordable set lunches that bring in the crowds. Try their marinated pork rice bowl (卤肉饭, lǔròu fàn) or "lion’s head meatballs" (蛤蜊牛蒡肉圆套餐, gélí niúbàng ròu yuán tàocān), and you’ll also get a side of soup, tofu and vegetables of the day plus a bowl of rice, all for less than 30 RMB ($5), no matter which benbang main you try. You can’t beat that price in the Xintiandi neighborhood.

A hidden culinary sanctuary, El Passadís del Pep may be located in one of the most visited quarters of Barcelona, but it’s out of sight of anyone who isn’t looking for it. Once you go down the long corridor that leads to the restaurant, you don’t need to do anything, and that includes choosing what to eat. From the moment you sit down, the “house” offers you your first bottle of cava, and the celebration of food and life begins. There is no menu and there are no “daily specials,” just whatever Joan Manubens and his team decide to cook that day.

North Korean cuisine is about as mysterious as it gets. Few travelers have ever actually been to the reclusive country, and news reports are more often about high-profile rescues and the dire food security situation than its national cuisine. Thanks to 10 North Korean restaurants in Beijing and 50 others scattered around Southeast Asia, those living in the Far East have plenty of opportunity to glimpse the country’s dining scene. Shanghai is home to seven branches of the Pyongyang restaurant chain, and food is only part of the draw. With a nightly show around 7:30 p.m., the song and dance numbers put on by the double-duty waitresses supposedly allow for a rare glimpse inside the traditional culture.

Rio’s Port Zone is undergoing a major facelift, and whether that will nicely polish its tired face or look like a botched Botox job remains to be seen. The port is the heart of Rio Antigo and particularly central to Afro-Brazilian history.It’s home to Rio’s first favela (squatter settlement), called Providência, which was originally populated in 1897 by veterans of the War of Canudos who were told the government would provide housing when they returned to Rio and found those promises to be delayed and elusive. At this port, up to an estimated half million slaves walked in from Brazil’s shores to then be sold in the port’s slave market, treated in a hospital if they were sick or buried if they died after arrival in Gamboa, where a fascinating makeshift museum called the Cemitério dos Pretos Novos offers a view of the human bones a homeowner found while digging on her property.

In Piraeus there is a tacit agreement among locals to keep treasured taverns and restaurants hidden, lest they be overrun by the tourists arriving on the cruise ships that dock in town. This is particularly true of Keratsini, a neighborhood on the outskirts of the port city. In 1922, Keratsini became home to Greek refugees driven out of Smyrna, the coast of the Sea of Marmara and Constantinople during fighting between Greece and the nascent Turkish state. At first, these immigrants were treated poorly and suffered poverty and hardships, but eventually they became a vital part of the Greek population.

Mushroom hunting has an irresistible, magical pull. Composer John Cage, an avid mushroom collector, found them an integral part of his creative process, once writing: “Much can be learned about music by devoting oneself to the mushroom.” Every fall, thousands of Catalans likewise find themselves under the mushroom’s spell, following the elusive fungus’s silent melody into the woods, a rustic wicker basket in one hand and – more and more these days – a GPS-enabled smartphone in the other.

At first glance, Bodega Manolo seems like the usual wine shop/tapas bar that Barcelona does so well: a solid place to replenish our wine stocks from the barrels, quench our thirst with a cold caña or satisfy our hunger pangs with a vermut and a tapa or two of oil-drenched anchovies. None of which sound too shabby. However, we know to venture through to the rear, where, at dinnertime, the brilliant white tablecloths reveal the venue’s greater ambitions.

Tacos are everywhere in Mexico City, and though the options are many – chicken, al pastor, carnitas, carne asada – the basic ingredients tend to be the same wherever you go. That’s why, as we were walking the aisles of Tianguis La Raza on a Sunday morning, El Parrillón caught our attention.

It’s been two weeks of cycling through China’s Qinghai province, and the food selection is slim. The majority of the province sits on the vast Tibetan Plateau, well above the tree line in conditions too harsh for significant cultivation. Yaks graze on well-trampled grass as far as the eye can see, with white yurts and colorful prayer flags dotting the hillsides and each summit pass. By Chinese standards, six million inhabitants in the country’s fourth-largest province make Qinghai practically deserted. For long stretches, only nomadic yak herders can be spotted between the tiny villages. Stopping for a roadside lunch in the small, isolated towns inevitably means a bowl of either mutton or yak chopped-noodle soup (羊肉面片, yángròu miàn piàn or 毛牛肉面片, máo niúròu miàn piàn). Served up in a tomato-chili broth, it’s a tasty meal, but repeated daily, it inevitably becomes tiresome. Additional ingredients sometimes includes julienned zucchini or green peppers, depending on the remoteness of the particular town and their staggered vegetable shipments. After just one week, we’re eagerly awaiting more fruitful pastures, and Sichuan province, located just to the east on our route, is a culinary paradise.

At the dusty eastern edge of the Taklamakan Desert, the ancient city of Dunhuang marked the intersection of the northern and southern parts of the Silk Road. Meaning “Bright Beacon,” Dunhuang was a historical refuge for weary travelers peddling their wares along the trade route, and this confluence of cultures influenced the ancient city’s cuisine. Merchants brought spices and cooking techniques from the West that combined with Chinese imperial culinary traditions and local ingredients.

It’s a long drive from Athens to Perama, the westernmost terminal of the port town of Piraeus, and the payoff is, at first sight, minimal. To the left is the port’s industrial zone – a forest of blue and orange cranes that tower over the sea. To the right is a stretch of industrial wasteland: old electricity plants, derelict factories, walls with enormous graffiti celebrating Piraeus’s very successful team, Olympiacos, and then a jumble of recently built high-rise buildings on a rocky hill. First populated in the 1920s by immigrants from Asia Minor, Istanbul and the Pontus (Black Sea) region, this suburb of Piraeus now has about 25,000 residents, most of whose livelihoods depend on the dockyards that have been here since the 1930s. Perama remains a proud, working-class neighborhood, and it is no accident that the early Greek hip-hop of the ’90s and the so-called Low Bap hip-hop genre and movement started here.