It was our first Tbilisi summer stroll down the city’s main drag, Rustaveli Avenue; two sweaty, newly arrived pie-eyed tourists tripping on the 2001 reality. There were billboards advertising the recent kidnapping of a Lebanese businessman, policemen in crumpled gray uniforms extorting money from random motorists with a wag of their batons, and at the top of the street, a former luxury hotel looking like a vertical shanty was full of displaced Georgians from Abkhazia. Parched and cotton-mouthed, we entered a café of sorts for cool respite. The room had high ceilings, was stark and all marble-tiled, including the long, wide bar. A splendid social-realism mosaic of women, grapes and wine was laid into the back wall. The counter was decorated with a few tin ashtrays and a spinning rack holding several tall cone-shaped beakers filled with technicolored syrups.

As winter descends over Istanbul, cloaking the city in gray rain clouds that make for beautiful sunsets but unpleasant commutes, we flee the many open-air eating options in the city for cozier digs, replacing outdoor meyhane feasts and rakı toasts with homey bowls of lentil soup and steaming cups of tea. Yet when we’re craving a place that is warm in ways beyond food, the average Istanbul lokanta often leaves something to be desired. Which is why, on a recent rainy Friday evening, we were pleasantly surprised to stumble upon Galaktion, a Georgian restaurant on a cobbled side street off Taksim Square, smack dab between Istiklal Caddesi and Sıraselviler Caddesi.

Despite the image that Greece wants to sell the world as a holiday destination of eternal summer with beautiful beaches and clear water, the fact remains that it is a very mountainous country – almost a third of Greek land consists of hills and mountains. Most are forested, hosting a great diversity of ecosystems that offer fertile ground for mushrooms in particular. That said, mushrooms don’t feature prominently in traditional Greek dishes, and many people avoid them altogether, even the common cultivated varieties, from fear of getting sick. For many, meanwhile, mushrooms don’t evoke the best memories: During the 70s and 80s, the tinned variety was mainly used in cooking, as fresh cultivated mushrooms were rare and expensive.

Lunch at Casa Guedes is one of our favorite culinary rituals in Porto: After snagging a seat at the bar during the midday rush, we sit, mesmerized, as Mr. Cesar nimbly cuts slices of roasted pork shank, then places them on bread and moistens it all with his secret sauce. While not the only item on the menu, the famous sande de pernil (roast pork sandwich) is Casa Guedes’s raison d’être. After taking in Mr. Cesar’s entrancing sandwich-making choreography, we order the upgraded version of the sande, which is topped with gooey queijo Serra da Estrela, a creamy sheep’s milk cheese. Seating at this humble and low-cost eatery used to be minimal, and Casa Guedes’s popularity had long outstripped its capacity – fans could be found waiting patiently in queues stretching down the block.

Lunch at Casa Guedes is one of our favorite culinary rituals in Porto: After snagging a seat at the bar during the midday rush, we sit, mesmerized, as Mr. Cesar nimbly cuts slices of roasted pork shank, then places them on bread and moistens it all with his secret sauce. While not the only item on the menu, the famous sande de pernil (roast pork sandwich) is Casa Guedes’s raison d’être. After taking in Mr. Cesar’s entrancing sandwich-making choreography, we order the upgraded version of the sande, which is topped with gooey queijo Serra da Estrela, a creamy sheep’s milk cheese. Seating at this humble and low-cost eatery used to be minimal, and Casa Guedes’s popularity had long outstripped its capacity – fans could be found waiting patiently in queues stretching down the block.

The excavations at Oplontis, located in the modern city of Torre Annunziata, are often overlooked in favor of its much larger, much grander neighbor: Pompeii. Yet like all little-known things, this archeological site is full of incredible surprises, like the magnificent villa said to have belonged to Poppaea Sabina, the second wife of the Emperor Nero. A UNESCO World Heritage Site since 1997, the villa is certainly worth a visit (plus, you’ll avoid the tourists who come from far and wide to invade Pompeii). And after having “discovered” Oplontis, there is a small gastronomic treasure to be discovered: DocSicil.

In a nation with so many baking and confectionary traditions, it’s surprising that one of the most popular cakes – the bolo-rei – was imported from another country (a sweet tooth does not discriminate, apparently). Translated as “king cake,” the bolo-rei was brought to Portugal from Toulouse, France, by one of the oldest bakeries in Lisbon, Confeitaria Nacional. Over the years, the bolo-rei has become a staple during the festive season: ubiquitous on the table before, during and after Christmas and New Year, and certainly a must for Dia de Reis (Epiphany) on January 6, when it’s baked in its fanciest form with a nougat crown (made of caramel and almonds) and fios de ovos (“egg threads,” or eggs drawn into thin strands and boiled in sugar syrup).

Think of Blavis in the Sant Gervasi neighborhood as the restaurant equivalent of the iconic Fiat 500 or Mini – perfect for a crowded city and charmingly so. Even though there are only two regular members of staff, this tiny spot packs a powerful punch. Chef and co-owner Marc Casademunt crafts tapas-style plates influenced by local and international cuisines, which are then served by Paco, the friendly waiter. When Marc and his partner, Sonia Devesa, opened the small restaurant in 2008, the financial crisis informed their initial concept: offering an affordable daily lunch menu for workers. In the beginning, they only opened for dinner two nights per week.

Corn is so vital to Mexican cuisine and culture that we could scarcely avoid it even if we wanted to. Not that we would ever want to – one of the things we love most about dining in Mexico is the high likelihood that our meal will have a healthy dose of corn in one form or another. Take atole, a traditional beverage made of corn flour, fruit, spices, and milk or water, which is often sold alongside tamales, corn patties most often stuffed with meat or veggies, steamed in a corn husk or banana leaf. Wash down your corn with some corn; that’s the Mexican way.

The market plays an important role in Mexico City’s daily life, not just because of its vendors but also because of its food makers – these market districts are home to a dizzying mix of street food sellers and small specialty restaurants. We sample some of these treats, tacos included, on our Market Watch walk.

Just after the stroke of midnight on New Year’s Eve or on the first day of the New Year, many Greek Orthodox families gather around the table to cut and split the vasilopita, a cake named after St. Basil (Aghios Vasilios), the Greek Santa Claus. The head of the family “crucifies” the cake three times with a knife and then cuts it into triangular pieces. Usually, the first piece is offered to Christ, the second to the Virgin Mary, the third to St. Basil and the fourth to the “house” before family members and friends each receive one. Some may offer a slice to St. Nicholas, the patron of sailors, to the poor, as St. Basil cared for them, or to the family shop or company.

When it came to eating in Porto in 2019, not everything was new. The sheer number of restaurant openings in the city was overwhelming at times, so we often went back to the known places, just to make sure they were still there. It was cheering to see how many are preserving the flavors that we find so satisfying. And even though some spots have reinvented themselves, the food they put out continues to comfort our stomachs. “Veal with Grain” at Tasca Vasco Tasca Vasco is the younger brother of Casa Vasco, restaurateur Vasco Mourão’s namesake spot serving a mix of traditional Portuguese cuisine and international favorites in Foz do Porto.

In a few years time, one might look back at the year 2019 and feel a bit sorry for it. That’s not for lack of delicious things to eat: record numbers of restaurants continue to open – although fierce competition means around half shut their doors within two years. But 2019 risks being forever overshadowed by 2020, when Tokyo will host the Olympics and Paralympics for the first time since 1964. It certainly is a preparatory year for the anticipated influx of overseas visitors. Fortunately, the city was able to lay claim to hosting the Rugby World Cup and did very well, both at demonstrating Japan’s omotenashi (hospitality) at its best and in the national team beating Ireland, causing one of the biggest upsets in the tournament’s history.

In Shanghai, robot restaurants (and grocery stores) were all anyone could talk about in 2019. Well, that and bubble tea shops. But we love that there are still thousands of mom-and-pop restaurants serving traditional foods that are handmade and well loved, if you know where to look. So next time, skip that trendy, US$100-a-head hotpot joint where you still have to queue for an hour after your reservation has passed, and try your local noodle joint. Of course, you’ll probably scan the QR code on your table to order (and pay), and you won’t even chat to the staff until they put your dishes in front of you – after all, it is 2019 in one of the most tech-forward cities in the world.

This year we came across scores of new places and watched as bars and restaurants continue to sprout up throughout the city in defiance of Turkey’s severe economic downtown (as the saying goes, bars always do well in times of crisis). But 2019 also involved discovering (and re-discovering) some classics that have weathered bad times both recent and distant, shining through it all with the gleaming beam of perfectionism and perseverance.