Potosí

Potosí is a city in Bolivia, located at  3967 meters above sea level considered to be the highest city in the world. There is a sayin in Spanish "Vale un Potosí" (worth a Potosí) that means it worths a fortune, because the city was founded as a mining town back in 1546 and soon it started to produce incredible wealth,  becoming one of the largest cities in the Americas. This city is even mentioned in the novel "Don Quixote" with a reference to its wealth and riches.