Amusement Parks.
An Amusement park or theme park is a group of entertainment attractions, rides, and other events in a location for the enjoyment of large numbers of people. An amusement park is more elaborate than a simple city park or playground, usually providing attractions meant to cater specifically to certain age groups, as well as some that are aimed towards all ages. Theme parks, a specific type of amusement park, are usually much more intricately themed to a certain subject or group of subjects than normal amusement parks.
RELATED LINKS
http://en.wikipedia.org/wiki/List_of_amusement_park_rankings
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Photos - world amusement parks