Campo Formoso, Brazil

With a population of just 62,104, Campo Formoso is a remote outpost in the northeast of Brazil, over 400 km from the state capital. The city covers a sprawling 7,162 sq km, resulting in a paltry population density of 9 people per square kilometer. While the surrounding mountains and caves may hold gems and rare stones, the hot 25°C climate and persistent bureaucratic headaches make this a challenging place to live.

Campo Formoso is best suited for those seeking a true off-the-grid experience, far from the crowds and comforts of Brazil's major cities.