If traveling is a top priority for you in 2019 and you follow a vegan diet, there are some cities that are more vegan-friendly than others. Vegan website Happy Cow has compiled a list of the 10 most vegan-friendly cities in the world based on the number of fully-vegan restaurants, the number of vegan-option restaurants and their impression of overall vegan-friendliness. London At the top of the list is London, because the number of vegan restaurants in the city has exploded over the past year.