It's not just the scenery and climate that make a country attractive, but also the financial stability it guarantees (without ever compromising leisure time).

It's the older generation, the so-called baby boomers (born between 1945 and 1960), who are behind this historic influx of cash.

These cities are economic powerhouses thanks to their strong economies, their influence on global markets and their ability to attract talent and investment. The ranking is based on 6 indicators: economy, research and development, cultural interaction, quality of life, environment and accessibility.