"Ho Chi Minh City is home to upscale coffee shops and many more traditional spots where locals and tourists can sit on plastic stools that line the streets enjoying ca phe sua da, a ground dark roast Vietnamese-grown coffee often served over ice with condensed milk," the U.S-based Booking.com stated.

The online travel agency highlighted Vietnam’s rich and varied coffee culture, with many areas coining their own delicacies including ca phe trung, or egg coffee.

Egg coffee was invented in the 1940s when there was a scarcity of milk in the city, prompting a bartender to use a replacement. The alternative, whisked egg yolk, turned the coffee into one of the most renowned drinks in the country.

Booking.com also recommended international travelers join a Vietnamese coffee tour to experience and appreciate local coffee culture.

Sipping coffee in the morning has become a way of life among Saigonese as they chat with their peers on plastic stools strewn along the sidewalks as the city wakes and traffic takes over.

A cup of black or white coffee, the city's beverages of choice, ranges from VND10,000 to VND15,000 ($0.44-0.66).

Napoli in Italy was named the best coffee city in the world, followed by Ukraine’s Lviv and Italy’s Rome.