Kigali, Rwanda Vision City, Rwanda’s largest housing project, sits on a hill overlooking the rest of Kigali. Its rows of whitewashed villas and townhouses stand out against the green landscape and shacks made of scrap metal and mud, in the slum in the valley below. Outside the main office, a mayor visiting from Ghana listens to his tour guide, an energetic young Rwandese official, detail the plans. There will be free wifi in the town