Mexico City’s Mercado Jamaica, a jumble of produce vendors and flower sellers, is not a place you would expect to find a gourmet establishment in. But this is what makes this public market so appealing: Hidden away among the various vendors in this massive market are several outstanding food spots, ranging in size and scope from a nondescript green chorizo taquería to a fine-dining seafood spot. Mariscos El Paisa didn’t start out as a “gourmet” restaurant when it first opened back in 1958 – like many other market establishments, it was humble and unpretentious. But in recent years, the kitchen has upped its game, putting out elevated seafood dishes (although the restaurant still retains an unpretentious vibe).

It’s no surprise that La Central de Abasto, Mexico City’s expansive wholesale market and the largest such market in the world, is constantly in motion. From the carretilleros, employees who move produce on dollies and whistle to signal that they’re passing through, to the steady stream of customers, the market pulses with energy. It’s a Friday afternoon when Diana Ávila, a programs director at the market, tours us around. As we pass neatly stacked piles of fruit and a banda playing in one of the hallways, she explains how this is the epicenter of Mexico’s food industry, a place where culture, food and community connect.

As soon as you enter Mercado Jamaica, one of Mexico City’s largest markets, you will quickly see (and smell) its main trade: flowers. Down the long aisles, hundreds of sellers line up colorful flowers that come from Xochimilco and other states. Visiting the market truly engages all the senses. But, you may ask, how does this include taste? Well, Jamaica Market happens to be home to several outstanding food vendors, among them one of our favorite taco stands in all of Mexico City. Hidden away among the market’s produce vendors, this stand doesn’t have a sign, and you can easily miss it if you don’t know what you’re looking for. Once you find it, though, you’ll keep coming back for their superb green chorizo tacos.

His name is Pasquale De Stefano, but everyone knows him as Pasquale ‘o nummararo, “the number man.” In this era of plotters and laser printers, De Stefano continues to hand-paint his signs, using ancient paintbrushes on wooden boards, which are then planted in the baskets of all Neapolitan fruit sellers. And even the wooden signposts are still cut by hand. In 65 years of work he has by now created tens of thousands of signs advertising the prices of apples (€0.99) or peaches (3 kg for €2). They can be small or large, on canvas or on wood, promising a “special offer” or “great value.” Sometimes Pasquale’s signs will feature a more pointed message: “Whoever touches the fruit will be touched by the fruit seller,” is one that comes to mind.

Something special happens when the sun goes down. Night markets, whether in Southeast Asia or in the heart of Queens, inspire a thrill — we call it a sense of wonder — that brings boundless childhood summers to mind. We still feel it, on warm-weather Saturdays, when we ride the elevated 7 train to the Queens International Night Market. (It's a pain to park anything bigger than a bicycle near the market; we always take public transportation.) Many of the other passengers seem to be headed our way. Surrounded by fellow pilgrims, our anticipation builds as we descend from the train platform and march south. As we near the market grounds, and as the wind freshens and comes about, perhaps we catch the scent of sizzling meat.

Inside Barcelona’s lesser-known Mercat de Les Corts is a small, unassuming bar offering up the bounty of the Mediterranean. El Bisaura opens up shop at 6:30 a.m., serving esmorzars de forquilla (hearty Catalan breakfasts like sausage and beans, tripe stew and grilled cuttlefish) to local workers. At lunch, it serves a more refined seafood menu composed of whatever owner Alfonso Puig gets from Peixateria Anna, the fish stand on the other side of the market. The fish and seafood of the day are always seasonal, local and impeccably fresh – which is no surprise, since Puig is also the owner of the fish stand.

It’s Sunday morning at La Pignasecca market in Naples and time is in flux. Picture a Boccioni painting: movement is blurred, there is an inter-penetration of objects, speeding vehicles and sound – a frenetic moment in the Futurists’ imagination. The city rises as engines splutter, traders hustle, klaxons yelp. Santa Maria di Montesanto spews punters out into the marketplace after mass; men peel off, heading home to check on the simmering ragù; groomed teenagers peacock on mopeds as groups of women push in line to pick up their last-minute order of fresh pasta, charcuterie and squid. The church bells chime: it’s lunchtime. Anticipation is in the air.

Mexico City can be quite lacking when it comes to finding fresh, tasty seafood. At most markets in the city, in addition to the taco places and tlacoyo vendors, there is usually some kind of stand selling seafood, but the quality can be either very good or very bad. Buying from the right place is thus essential, and that’s why we were so happy to discover La Morenita, a standout seafood and oyster restaurant in Colonia Roma’s Mercado Medellín. Established more than three decades ago by Miguel Gardono, La Morenita has become a busy, reliable stop for shoppers.