軍艦島 - Gunkanjima - is one among 505 uninhabited islands in the Nagasaki Prefecture about 15 kilometers from Nagasaki itself. The island was populated from 1887 to 1974 as a coal mining facility. The island's most notable features are the abandoned concrete buildings and the sea wall surrounding it. The island has been administered as part of Nagasaki city since 2005; it had previously been administered by the former town of Takashima.
Giant Fruit-Shaped Bus Stops Line Streets in Japan
Hashima Island, Japan | Hashima used to be a coal producing island and at one time had the highest population density in the world. There are a number of documentaries on it. Nature is now reclaiming it amazingly quickly!