It's the first time the Youthful Cities Index has been put together - with the help of thousands of young people worldwide.
Twenty-five cities from across the globe were measured across the following categories:
- Civic participation
- Internal transportation
- Digital access
- Environmental sustainability
- Safety & Mental Health
- Access to education
- Youth employment
- Financial access
- Economic status
- Food and nightlife
- Music and film
- Fashion and art
- Regional and global connectivity
- Public space, sport and gaming
Social venture YouthfulCities - which aims to help young people 'build better cities' - said it was the first attempt toquantify which cities are most attractive to young people aged 15-29.
More top news
Sadiq Khan issues the first 'very high' air quality alert since becoming Mayor
The RSPCA alongside fire and rescue teams were called to help save a cat which got itself stuck in between a 15cm wall.
A glitch on TfL's Journey planner has begun renaming some of London's most popular stations.