A study finds that one out of every 25 New Yorkers is worth seven figures. If you walk down the street in New York City, you’re bound to run into at least one millionaire.

If you want to meet millionaires, go to Europe. According to a study conducted by Spears magazine and wealth consultancy company WealthInsight, you’re most likely to cross paths with a millionaire in the tiny city-state of Monaco. Well known throughout the world as a playground for the rich and famous, nearly a third of the principality’s 37,000 population are millionaires.