Athinas is one of our favorite streets in the whole of Athens. Running from Omonia to Monastiraki squares, it has a scruffy, chaotic, disreputable charm that has hardly changed since we moved to Greece more than 40 years ago. From the Omonia side to City Hall and the Central Market, hawkers and peddlers – of everything from sunglasses and “magic” juicers to contraband cigarettes – make the sidewalk an obstacle course for the crowds of shoppers in search of bargains in open storefronts.

In Catalonia around the summer solstice, we make one of our most traditional liqueurs, ratafía, for which the herbs, fruit and flowers that are macerated in alcohol must be collected on Saint John’s Eve, or June 23. This highly aromatic digestif has long been believed to have medicinal properties. There’s even an old Catalan rhyme along those lines: Ratafía, tres o cuatro al día (“Ratafía, three or four per day”). Different versions of the liqueur have been made for centuries in eastern Spain and some regions of France and Italy but, like the other herb liqueurs throughout Europe, they originated from the Ancient Roman and Greek custom of macerating fruit and herbs in wine, from Arabian perfume distillation and from the sophisticated medieval distillations in monasteries and convents that created the first aguardientes, or grape-based, medicinal liqueurs.

Dear Culinary Backstreets,My wife and I love to cook at home and for our friends, and we would love to learn more about Spanish cuisine on our next trip to Barcelona so that we can recreate our favorite meals when we return home. Where can we take English-language cooking classes in the city?

It is impossible to sleep late in Gaziantep, despite the tranquility of the historic quarter, the calming, hunker-in-and-go-back-to-sleep effect of the hotel room’s thick stone walls and the comforting, dusty smell of antique furniture. Even the promise of a nice breakfast spread served between 7:30 and 10 a.m. could not keep us from hitting this ancient southeastern Turkish city’s streets. At 6 a.m., we were rambling through Gaziantep’s coppersmiths’ bazaar. As we walked by, the metal shutters of spice shops were thrown open in a clattering roar, whooshing an aromatic cloud into our path. Street sweepers worked their beat with twiggy, homemade-looking brooms as groups of shopkeepers lingered over the first of many more teas and smokes at the corner çayhane. Exiting another artery of covered bazaars, we stepped out into bright morning light, which shot through the brooms of street sweepers at rest, creating crazy mangrove-like shadows on the sidewalk. We were close now, so close we could smell it.

In Greece, where the land is mostly rocky and steep and the climate hot and arid, the olive tree thrives, and for millennia, olive oil has been as essential to Greek cooking as the gnarled, silver-leaved trees have been to its landscape. Greece is the third largest producer of olive oil in the world after Spain and Italy and the greatest in consumption per capita.