Cairo (Egypt) 

 Cairo has been the heart of Egypt for more than 1000 years. Here the medieval world and the contemporary Western world clash in a confusion of mud-brick houses and towering modern office buildings, of flashy cars and donkey-drawn carts（驴车）. The resulting pervasive sense of timelessness is one of the city's great charms. At the end of the day, it's a city travelers either love or hate; few come away indifferent.