Approaching the derelict shell of downtown Detroit, we see full-grown trees sprouting from the tops of deserted skyscrapers. In their shadows, the glazed eyes of the street zombies slide into view, stumbling in front of the car. Our excitement at driving into what feels like a man-made hurricane Katrina is matched only by sheer disbelief that what was once the fourth-largest city in the US could actually be in the process of disappearing from the face of the earth. The statistics are staggering – 40sq miles of the 139sq mile inner city have already been reclaimed by nature. One in five houses now stand empty. Property prices have fallen 80% or more in Detroit over the last three years. A three-bedroom house on Albany Street is still on the market for $1.
