Uccle, Belgium

With a population of 83,980, Uccle is a well-to-do Brussels suburb that attracts its fair share of wealthy expatriates. However, don't expect small-town charm - bureaucracy is a persistent headache, and the community of French immigrants can be insular. On the plus side, this green and calm suburb boasts generous gardens, parks, and access to the Sonian Forest, making it a favorite with Brussels' elite.