High Quality Content by WIKIPEDIA articles! A diner, also spelled dinor in western Pennsylvania is a prefabricated restaurant building characteristic of North America, especially in the Midwest, in New York City, in Pennsylvania and in New Jersey, and in other areas of the Northeastern United States, although examples can be found throughout the US and in Canada. Some people apply the term not only to the prefabricated structures, but also to restaurants that serve cuisine similar to traditional diner cuisine even if they are located in more traditional types of buildings. Diners are characterized by offering a wide range of foods, mostly American, a casual atmosphere, a counter, and late operating hours. "Classic American Diners" are often characterized by an exterior layer of stainless steel—a feature unique to diner architecture.