1. KOLMANSKOP, NAMIBIA
In the early 1900s, diamond mining made Kolmanskop in Namibia, then known as German South-West Africa, a boom town. Yet diamond mines are not forever, and eventually the industry moved to new opportunities further south, leaving Kolmanskop to be abandoned in the 1950s. The desert took back what was left (see photo above), with swells of sand now rising over and through the derelict buildings, which have otherwise experienced little deterioration due to the arid climate.