Travelers ranked cabs for price, cleanliness, safety and the quality of the cabbies' driving and their knowledge of the cities.
Hotels.com said that taxis are the first experience that many people have in a new city, so it's important to make a good impression.
New York cabs came in second, and Berlin, Germany was third.
Only one other U.S. city, Las Vegas, made the top 10.
Even though London is considered No. 1, it does have some drawbacks. Travelers said London taxis are also the most expensive.