There is no single answer to the question of which city is the most beautiful in the world. Beauty is subjective and depends on individual preferences. However, many cities are consistently ranked among the most beautiful globally.
Several sources highlight numerous contenders. For example, Condé Nast Traveler has a list of 50 beautiful cities (https://www.cntraveler.com/galleries/2016-01-08/the-50-most-beautiful-cities-in-the-world), while Civitatis features 12 (https://www.civitatis.com/blog/en/most-beautiful-cities/), and Airalo lists 25 (https://www.airalo.com/blog/the-25-most-beautiful-cities-in-the-world-to-visit). Sydney, Australia, is frequently cited for its iconic harbor skyline ([Source: Celebrity Cruises blog post, Oct 14, 2024]). Other sources mention Paris, often in comparisons about which city rivals its beauty (https://www.quora.com/What-city-can-compete-with-Paris-in-terms-of-beauty). Jaipur, India, is another example highlighted for its unique architectural style (https://www.airalo.com/blog/the-25-most-beautiful-cities-in-the-world-to-visit).
Ultimately, the "most beautiful" city is a matter of personal opinion and depends on individual aesthetic preferences. Many cities around the world offer stunning architecture, natural beauty, and cultural richness.