•ALPHAU is a historical city , it site on the edge of the western north of empty quarter. it is near about 700km for the south western of Riyadh city , this importance result it is the capital of Kindah historical country for five century .
•from its unique site , which connect between the north and south , which make from it very important station for the trading , result saving the water in it .
• the trading made a very important roll in life of this area people , they traded on the beans and & perfumes & textile & jewel stones and minerals , all this effected on the city buildings & markets & palaces and temples . this city was more important point for exchange the perfumes round the world and it could to transfer the culture of east in the perfumes to the western world and the opposite .