The thousand-year old Berber city of Ghadames has been a UNESCO World Heritage Site since 1986, and housed 6,000 people before it was abandoned between the mid 1970's and 1982. It is hard to describe the brick, adobe and gypsum architecture or the unique desert-friendly layout of the streets, squares, mosques, houses and gardens, but you are likely to fall in love with it very easily. The city has a very human feel to it, and is clearly based on an enduring social and cultural structure centered on the streets (for the men) and the linked rooftops (for the women).