“Potosi, at over thirteen thousand feet, is the highest city in the world, and it is inconceivable that anyone would ever bother to build, much less occupy, a city at such an altitude were it not for the fabulous riches of Cerro Rico. Indeed, at one time things were really humming here--French wines, Chinese silks, posh whores, etc.--Potosi's university was founded well before the Pilgrims ever thought to set sail, and in 1613 the population was a hundred twenty thousand, equal to London's.”