London is a leading global city, with strengths in the arts, commerce, education, entertainment, fashion, finance, healthcare, media, professional services, research and development, tourism, and transport all contributing to its prominence. It is one of the world's leading financial centres and has the fifth-or sixth-largest metropolitan area GDP in the world depending on measurement.[note 3] London is a world cultural capital. It is the world's most-visited city as measured by international arrivals and has the world's largest city airport system measured by passenger traffic. London is one of the world's leading investment destinations, hosting more international retailers and ultra high-net-worth individuals than any other city. London's 43 universities form the largest concentration of higher education institutes in Europe, and a 2014 report placed it first in the world university rankings. According to the report London also ranks first in the world in software, multimedia development and design, and shares first position in technology readiness. In 2012, London became the first city to host the modern Summer Olympic Games three times. COUNT 10
QSN1 Where does London rank in the world in terms of Metropolitan GDP? ANS1 fifth-or sixth-largest QSN2 Based on international arrivals, where does London rank in terms of most-visited cities? ANS2 world's most-visited QSN3 How many universities are located in London? ANS3 43 QSN4 Where does London rank in the world's university rankings? ANS4 first QSN5 How many times has London hosted the Summer Olympics? ANS5 three times QSN6 Where does London rank in terms of metropolitan area GDP? ANS6 fifth-or sixth-largest QSN7 How many times has London hosted the Summer Olympic Games? ANS7 three QSN8 What measurement designates London as the world's most visited city? ANS8 international arrivals QSN9 How many universities does London boast? ANS9 43 QSN10 When did London most recently host the Summer Olympics? ANS10 2012