Sydney, Australia

Capital City

This is one of the most expensive cities in the world, with the median house price clocking in at over $1.7 million. While Sydney's iconic harbor and beaches make it a scenic place to live, the high cost of living and occasional bureaucratic headaches are persistent challenges. The city is also susceptible to extreme weather events like bushfires that can impact air quality. Sydney may be best suited for affluent professionals drawn to its thriving financial and tech sectors, but those seeking an affordable and stress-free lifestyle may want to look elsewhere.