6. Frankfurt
Frankfurt, the financial centre of Germany, has 1,953 multi-millionaire residents, up by 2.8 percent from 1,900 last year.
Almost all of the world's top 10 biggest cities for multi-millionaires added more over the past year
Frankfurt, the financial centre of Germany, has 1,953 multi-millionaire residents, up by 2.8 percent from 1,900 last year.