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In the midst of hosting the 2012 Olympics and being stuck on a zip line, London's colorful mayor Boris Johnson has found the time to launch the World Cities Culture Report 2012.

Berlin, Istanbul, Johannesburg, London, Mumbai, New York, Paris, São Paulo, Shanghai, Singapore, Sydney and Tokyo have "come together in an unprecedented global collaboration to examine the character and importance of culture in world cities," according to the report.

It gathers evidence on 60 cultural indicators in each city, assessing both the supply of and demand for culture, and reports on the thinking of cultural policymakers in those places.

Among the 60 indicators: museums, park space, concert halls, theatres, comedy clubs, art galleries, cinemas, bookshops, bookshops, Michelin starred restaurants, nightclubs and even bars.

Here are the "winners," or the city with the highest number of establishments in the given categories.

National museums: Shanghai

Percentage of public green space: Singapore

Public libraries per 100,000 population: Sydney / Tokyo

Cinemas (per million population): Paris

Restaurants per 100,000 population: Tokyo

Michelin-starred restaurants: Tokyo

UNESCO World Heritage Sites: Paris

Other historical / heritage sites: Istanbul

Theatrical performances per year: New York

Comedy clubs: New York

Art galleries: Paris

Rare and second-hand bookshops: Johannesburg

Nightclubs, discos and dance halls: São Paulo