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 These pictures are my memory that was embedded for impression when I and my friends went to present our researches, term paper, in 2007 at Las Vegas, Nevada, U.S.A. We exited to academic activity as first experience in oversea. Las Vegas City is not sleep because it has more entertainments, such as gambling, shopping, fine dinning, and others. Surprisingly, the city is more popular to visiting and entertaining although it is established on the dessert