Bolivia, a world unto itself
January 17th 2011 The air is thinner. It's harder to breathe. It's cold. Welcome to Bolivia, La Paz - the highest city in the world. I'm acclimitised to the altitude now, but this city is still dizzying in every respect. Homes are tightly built towards the sky on eroding, narrow mountains. It defies gravity. I have no idea how 1.5 million people live here or how the masses of buses get through the irregularly-shap
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