For more than 40 years, Manaus, the largest city in the Brazilian Amazon, had a neighborhood that floated on the river. Located near the Meeting of the Waters, the Floating City was a labyrinthine maze of houses, churches, shops, bars, and restaurants, connected through precarious streets made of wood planks. At its peak, it had around 2,000 bobbing houses built on top of trunks, and a population of more than 11,000 people. If it hadn’t been destroyed, the Floating City could have become one of the modern icons of the…