International, first name familiarity
Active influence and participation in international events and world affairs
A fairly large population
A major international airport
An advanced transportation system that includes several freeways and/or a large mass transit network offering multiple modes of transportation
In the West, several international cultures and communities (such as a Chinatown), in other parts of the world, cities which attract large foreign businesses and related expatriate communities
International financial institutions, law firms, corporate headquarters (especially conglomerates), and stock exchanges that have influence over the world economy
An advanced communications infrastructure on which modern trans-national corporations rely
World-renowned cultural institutions, such as museums and universities
A lively cultural scene, including film festivals, premieres, a thriving music or theatre scene, an orchestra, an opera company, art galleries, and street performers
Several powerful and influential media outlets with an international reach
A strong sporting community, including major sports facilities, home teams in major league sports, and the ability and historical experience to host international sporting events such as the Olympic Games, Football World Cup, or Grand Slam tennis events