Iranduba, Brazil

With a population of just 18,876, Iranduba may seem like a sleepy backwater, but the reality is that it's a small, bureaucratic municipality that's struggling to keep up with rapid growth. The area is home to over a million acres of protected rainforest, which controls development and limits economic opportunities. And while the new Manaus Iranduba Bridge has improved connectivity to the larger city, the area still faces persistent challenges from its remote jungle setting.

This isn't the place for someone seeking an easy, metropolitan lifestyle. Iranduba is for hardy souls who can navigate its administrative headaches and accept the realities of living on the edge of the Amazon. For the right person, it could be a gateway to an adventurous, nature-filled life - but be prepared to put in the work.