Barcarena, Brazil

With a population of just 45,946, Barcarena is a far cry from the glitzy megacities many expats dream of. The economy relies heavily on agriculture and bauxite mining, a far cry from the vibrant cultural hubs some may expect. And as for the climate, prepare for a relentless tropical deluge - Barcarena sees heavy rainfall for most of the year.

The city's port is developing as a major shipping hub, but this progress has come at a cost. In 2015, a livestock vessel capsized, spilling thousands of cattle and tons of oil into the surrounding waters. The cleanup was a bureaucratic nightmare, with local fishermen left to shoulder the burden for months.

Overall, Barcarena is best suited for those seeking a quiet, no-frills existence in Brazil's interior, away from the crowds and chaos of the megacities. But be prepared to navigate a complex web of local regulations and environmental challenges.