Singapore 2 4 3 4 4 1 1965 716.1 5,469,700 Singapore, an island city-state off southern Malaysia, is a global financial center with a tropical climate and multicultural population.Hong Kong is also a major shopping destination, famed for bespoke tailors and Temple Street Night Market. Central (the business district) features architectural landmarks like I.M. Its vibrant, densely populated urban centre is a major port and global financial hub with a skyscraper-studded skyline. Hong Kong 2 4 4 4 4 1 1842 1105.6 7,290,825 Hong Kong is an autonomous territory, and former British colony, in southeastern China.Other major attractions include Teatro Colón, a grand 1908 opera house with nearly 2,500 seats, and the modern MALBA museum, displaying Latin American art. Its center is the Plaza de Mayo, lined with stately 19th-century buildings including Casa Rosada, the iconic, balconied presidential palace. Buenos Aires 1 5 3 3 3 0 1536 203 3,054,267 Buenos Aires is Argentina’s big, cosmopolitan capital city.