My husband and I had lunch at the Summit Diner today. It's a converted railroad car, and a truly cool place.
According to Wikipedia - The Summit Diner, located on the corner of Union Place & Summit Ave., is an O'Mahony diner that has wood paneled walls, eight booths and 20 stools. It is a historic diner known for its Taylor Ham, Egg & Cheese sandwiches. Local legend says author Ernest Hemingway visited the diner and later used it as a setting for his short story "The Killers". In the story, two men are sitting at a lunch counter in a diner, and one turns to the other and says, “This is a hot town, ... What do they call it?” “Summit,” says the other. However, this is highly unlikely as the Summit Diner is a O'Mahony 1938 model and Hemingway published his story in 1926. Also, in his definitive biography of Hemingway, Carlos Baker states that the reference by Hemingway was to Summit, Illinois, a small town outside of Chicago (and not to Summit, New Jersey). Carlos Baker, "Ernest Hemingway: A Life Story" (1969). - http://en.wikipedia.org/wiki/Summit,_New_Jersey#Landmarks