London tops super-rich city list, survey shows

London has more billionaires than any other city in the world, and Britain has more billionaires per head of population than any other country, new data showed on Saturday.

http://news.yahoo.com/london-tops-super-rich-city-list-survey-shows-225059524.html;_ylt=AwrSyCU61G5T6TYAXkjQtDMD