No. 1: Zurich

Switzerland

Mercer score: 108*
2007 rank: No. 1
GDP: $300.9 billion (2007 est.)**
Population: 7,581,520 (total country); 347,517 (total city)
Life expectancy: 80.74 years

* The rankings are based on a point scoring index, with Zurich scoring 108 and Baghdad scoring 13.5. Cities are compared to New York as the base city, with an index score of 100. The quality-of-living survey covers 215 cities and is conducted to help governments and major companies place employees on international assignments. The survey also identifies those cities with the highest personal safety ranking based on internal stability, crime, effectiveness of law enforcement, and relationships with other countries.

** The World Factbook