In Afghanistan's leafy western city of Herat, a two-lane road slices between the city's five remaining 15th-century minarets. Every truck, car, bus, motorcycle, and horse-drawn carriage that passes by sends vibrations coursing through the delicate structures. In particular, the Fifth Minaret -- all 55 meters of it -- seems ready to collapse into a dusty heap of bricks and colored tiles at any moment. A large crack near its base makes drivers speed up just a little as they pass by. These are one of the several historic heritages we have in Herat and very very famous.