Like Clark Kent hiding his Superman tights beneath a brown suit and glasses, Klemuri maintains the appearance of a predictable Beyoğlu café – wooden tables, shelves loaded with knickknacks, Buena Vista Social Club on the stereo, spinach crepes and a crispy chicken salad on the menu. But down in the kitchen, out of public view, Klemuri’s alter ego – a spry Laz cook – is waiting to save you from another boring “café” lunch.

There’s nothing like a debate about “urban renewal” – often touted by municipal governments as a way to repurpose run-down urban areas for gentrification – to work up a good appetite. In a city like Istanbul, a teeming metropolis of 15 million people working to build a modern life among ancient ruins, these discussions seem to occur on every corn

Diners in Istanbul are spoiled with options for fresh seafood. But most venues are mere caricatures of places like İsmet Baba, where traditions have been kept sacred for more than 50 years. While many other such restaurants are kitschy, İsmet is gritty and authentic. Located in Kuzguncuk, a charming neighborhood on the Asian side of the Bosphorus, it may not be the best restaurant in the city, but it’s got something most of the others have lost: old-school Istanbul charm and character.

Editor's note: This week, Mexico City joins Culinary Backstreets as our fifth city. We're delighted to launch Culinary Backstreets: Mexico City and look forward to sharing our culinary discoveries in this captivating metropolis. The vast megalopolis of Mexico City is one of the most misunderstood and misrepresented cities in the world. Adventurous tourists are often surprised to discover a vibrant national capital filled with incredible architecture, beautiful weather and amazing food. In some ways, this scene has been playing out for 500 years.

In a desk drawer at Istanbul Eats HQ is an envelope of leftovers from days when life was less sedentary: Tajik somoni, Kyrgyz som, Cypriot pounds, a wad of Macedonian denar and a small stack of Georgian lari. As with the last bite on the plate, it’s impossible to throw money away, no matter how unstable the currency. But the real value of having it on hand is that it makes a return visit seem likely, even pending. Our plans to return to Georgia were made, cancelled, rescheduled and cancelled again. It would seem our lari would never be much more than a filthy little memento, an IOU from the National Bank of Georgia for a khachapuri that would never be cashed in.

Housed in a bright pink neoclassical-style building on bustling Praxitelous Street (a road full of shops selling electrical equipment, wholesale beads and jewelry supplies), Doris has been around since 1900. It’s a traditional Athenian eatery known as a mageireio, which roughly means “cooking house” or “eating place.”

Hong Kong native and Cha’s owner Charlie Lau became a restaurateur because of a hankering. A movie producer by day, Lau came to Shanghai with Ang Lee to film “Lust/Caution,” and was disappointed that Shanghai lacked a proper Hong Kongese cha canting, a casual all-day eatery that serves traditional Cantonese food alongside milk teas and coffee. So he decided to open his own. On the set of “Lust,” a 1930s period piece, Lau was responsible for ensuring the historical accuracy of the costumes, casting and set design, so it’s not surprising that he designed Cha’s with the past in mind. Walking across the restaurant’s threshold transports you to 1950s Hong Kong.

Beyond the kebab – and what you will find listed in most guidebooks for Istanbul – lies a wide range of unique Turkish regional cuisines and restaurants with hints of Balkan, Caucasian and Middle Eastern cooking. The city has been a crossroads of numerous civilizations for centuries and, more recently, a magnet for migrants from across Turkey, with every group that has either come through or stayed put adding their ingredients to Istanbul’s culinary stew. Thanks to this, one of the joys of visiting Istanbul is that, in terms of eating, it’s possible to visit every one of Turkey’s varied regions – and even a few neighboring countries – without ever leaving the city limits. With restaurants serving everything from the Middle Eastern-influenced kebabs of Southeast Turkey to the homey, rib-sticking soul food of the Black Sea area in the North, Istanbul has truly become the culinary Babel of the country.

Dining like a local in Shanghai often requires a small leap of faith. You have to forget about ambience and brave tough crowds with even tougher elbows to join the raucous, slurping masses with their steamers of the city’s famous soup dumplings, xiǎolóngbāo. Even with its thriving economy and sky-high construction boom, Shanghai still has a street food culture that is deliciously cheap and easy to find. To become a part of the appetizing fun, just look one street off the main road or wander into the city’s disappearing lilong (里弄, alleyways), which more often than not are teeming with Chinese pancake hawkers, wonton shops or makeshift grills emitting the smoky aroma of charred lamb kebabs.