Lisbon’s tiny Taberna da Rua das Flores is almost always crowded, with barely enough room for staff to explain (and often translate) to hungry clients the dishes chalked up on its only blackboard menu. With around 10 marble-topped tables in a narrow, vintage-style eatery that takes no reservations, its small scale and increasing popularity makes for a challenging place to serve food – and yet, the staff are always smiling. The restaurant’s original, contemporary take on the forgotten tavern fare of the city, as well as its patient service and shared love of local ingredients, make it well worth the waiting time.

At Bar do Momo in Tijuca, there are many things to celebrate, but the two dishes starring jiló are particularly magnificent – and show how this little gastropub punches well above its weight. A green, meaty, slightly bitter cross between an eggplant and a pepper, jiló was brought to Brazil from West Africa during the slave trade. At Bar do Momo, the vegetable is served two ways: One is the jiló recheado, not unlike a chile relleno, stuffed with beef and mozzarella cheese that melts into a savory broth. The other is the only Brazilian guacamole worth your time: made from tangy pickled jiló, red onion, tomato, lime, cilantro, and Brazilian dedo de moça pepper.

Healthy eating and Chinese food are often hard to combine, but Karen Chen has discovered the recipe. After the success of Jianguo 328 (a homestyle Shanghainese restaurant that forgoes MSG and uses filtered water to boil its excellent noodles), the Taiwanese restaurateur decided to look west – where spice is king – for her next venture: Yi Zhang Hong. The friendly Sichuan restaurant is cobbled together with a narrow staircase leading up to cheerful dining rooms over three floors. On each level, bright folk art hangs on white walls above long banquettes and blond wood tables, and the red-tiled bar on the first floor is decorated with bottles of imported wine and beer and canisters of local tea.

Green peas, grape leaves and squash are on offer at the market in the lovely neighborhood of Kuzguncuk, an essential component of our Born on the Bosphorus tour.

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.

It’s a mid-week spring day in Tbilisi and we have joined Dali Berdzenishvili and her family for a special picnic lunch. There’s a zesty looking spread covering most of a yellow and blue tablecloth: heaps of khachapuri (cheese bread), blinchiki (meat rolls), sliced meats and sulguni cheese, salads, a trademark Georgian dish of pickled greens known as jonjoli, a bowl of strawberries and a few slices of leftover Easter paska cake. For drinks, there are several bottles of semi-sweet red and a bottle of homemade grape juice. Dali says her late husband, Zviad, loved a picnic like this. And it is Zviad who brings them all here – because they are eating next to his grave.

Loquats (nêsperas in Portuguese) are now in season - all over Mercado da Ribeira, the historic market encountered on our Lisbon Awakens tour. We're still waiting for the cherries!

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.

Before thousands of Syrian and Lebanese immigrants arrived in Rio at the beginning of the 20th century, colonists organized the old city according to geography, chance and Spanish and Portuguese planning conventions. This meant stores in the same category – ironware, shoes, musical instruments – were grouped together, sometimes even allotted their own street. If you needed wholesale fabric, you headed to a different road than if you needed a new kitchen pot. When hard fortunes amidst the breakup of the Ottoman Empire brought residents of the regions surrounding Syria and Lebanon to Rio, many put down roots in an area then called “Little Turkey” on Alfândega Street, near the port

To call the drinking of yerba mate a fixation in parts of South America would be an understatement. Yerba mate (MAH-tey) in Argentina and Uruguay is consumed regularly by an estimated 98 percent of the population, and, like tea in other countries, has social and cultural significance and rituals associated with friendship, business relationships, leisure, hospitality, etiquette and national identity. As a social ritual, mate brewing requires a bit more than just yerba, the vessel (calabaza), straw (bombilla) and hot water (80 degrees C – 175 degrees F – is the usual temperature, but around 50 degrees C or 120 degrees F is preferred); if you are in a group setting, you’ll also need to know a bit of its language of respect and solidarity.

There’s a general rule of thumb in Tokyo that if you see a line in front of a restaurant, it’s probably worth standing in. Maybe that’s how we first discovered Karē wa Nomimono. Or maybe it was the heady scent of fresh curry that wafts out the kitchen door before the restaurant opens every day. As many times as we’ve been back, it’s hard to remember. Touted as a national dish since at least the mid-20th century, curry rice is for many Japanese the quintessential comfort food. While some shops pride themselves on making curry just like mom used to, others are taking the classic dish in bold new directions.

Locals are crazy for Ali Usta's çiğ köfte. Ali Usta is a delicious character who has his tiny shop in the backstreets of Istanbul's Spice Bazaar. Çiğ köfte made with bulgur, herbs and spices suits every vegetarian's palate if one can eat hot, spicy food. This huge container is empty by late afternoon. Be there on time! A favorite stop on our Culinary Secrets of the Old City tour.

In landlocked Mexico City – the nearest coast is 250 miles away – you might think that it would be difficult to find fresh seafood. However, ever since Aztec times, the ocean’s bounty has been brought to the valley daily. Back then, the Aztec emperors got their goods using a system of relay runners that covered those hundreds of miles from sea to city per day. Things require less footwork today: technology and Mexico’s highway system allow daily deliveries of fresh seafood to the capital from the Pacific and Gulf of Mexico coasts. That said, feeding the Mexican capital’s fish craving still requires some hustle.

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 oranges are beckoning shoppers at the farmer's market in Keramikos, central Athens. This market is a featured stop on our downtown Athens tour. Already pleasant and bustling in March at the time of this photo, imagine what it's like in May!