What's the most livable city in the country?

Q: What's the most livable city in the United States?

A: According to The Economist magazine's rankings of the most livable cities, Pittsburgh is the best place in which to live in the United States

The Economist is a British magazine. It took into account stability, health care, culture, environment, education and infrastructure in its evaluation.It ranked Pittsburgh the world's 29th most livable city, the highest placer among American cities.

President Barack Obama recently chose Pittsburgh to host the G-20 summit in September, calling it a symbol of economic recovery.

What's the most livable city in the world?