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ters that make up the theme. These parks offer a world with no violence or social problems. The thrills of the theme parks are often obscured from the outside by high fences or barriers reenforcing the feeling of escape, they are kept clean and new thrill rides are frequently added to keep people ing back. In addition to this experience, the theme park is either based on a central theme or, divided into several distinctly themed areas, lands or spaces. Large resorts, such as Walt Disney World in Florida (United States), actually house several different theme parks within their confines. Today, central Florida and most notably Orlando boasts more theme parks than any other worldwide destination. The northeastern USA region, most notably Pennsylvania, is now a hotbed of traditional surviving amusement parks. Amusement parks collect much of their revenue from admission fees paid by guests attending the park. Other revenue sources include parking fees, food and beverage sales and all amusement parks operate using one of two admission principles: Payasyougo and Payoneprice。s fairs and expositions were another influence on development of the amusement park industry. Most amusement parks have a fixed location, as pared to traveling funfairs and carnivals. These temporary types of amusement parks, are usually present for a few days or weeks per year, such as funfairs in the United Kingdom, and carnivals (temporarily set up in a vacant lot or parking lots) and fairs (temporarily operated in a fair ground) in the United States. The temporary nature of these fairs helps to convey the feeling that people are in a different place or time. Often a theme park will have various 39。t e to an end when the railways lines have been laid, or which don39。s worldfamous tourist destinations are struggling. Last year, Xian attracted almost 20 per cent fewer domestic and foreign visitors than officials expected. And, five months after the Olympics, Beijing39。s cartoon and animation park and Beijing39。s economy than anticipated, Shanghai may find that their theme park will not bring in the extra t