Some classic fast food restaurants have closed over the decades. These are some of the once-popular restaurants that have fallen by the wayside.

The veteran chicken chain is battling U.S. sales declines as consumers choose sandwiches and tenders over buckets of fried ...

KFC is the latest in a growing number of its rivals in the quick-service restaurant sector that are turning up the heat with aggressive promotions and new menu items to drum up traffic. The chain ...