Where: East River between the Bronx and Riker's Island
North Brother Island has been virtually untouched by humans since the sixties, when it housed a functioning psychiatric hospital. Although people haven't been "vandalising" and tinkering with the abandonded buildings, the island truly is a sight to see. It truly gives you an impression of what the rest of the world will look like once we all die from global warming or an asteroid, or whatever else finally gets us. We highly recommend checking it out, at your own risk, of course.