A fountain in the Forum Shops at Caesars, which is Las Vegas' premier retail, dining and entertainment destination, featuring more than 160 boutiques and shops as well as 13 restaurants and specialty food shops. The ceiling of the Forum Shops is painted like a blue sky with white clouds and lighting that goes from sunrise, daytime, and sunset among Ancient Roman architecture. Las Vegas, the most populous city in Nevada, United States, is an internationally renowned major resort city for gambling, shopping, entertainment, gourmet food and trade fair. [Photo by Xu Lin / China.org.cn]