Stand in the middle of the old town hall in Kolmanskop and you’ll find yourself knee-deep in sand. Kolmanskop sprung up when diamonds where discovered here in the early 1900s – but it faded just as quickly once the gems petered out, and it was abandoned to the mercy of the desert in the mid-1950s. Today, it’s an eerie ghost town, its once-grand buildings – including a ballroom, theatre and casino – slowly succumbing to the encroaching dunes.