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 1960s and ’70s were fast food’s Wild West era—a time when chains threw caution to the wind and served up some truly bonkers creations. We’re talking pineapple burgers that made executives sweat, ...

Fast food is the one constant in our lives — conversely, it is also continually evolving, with new menu items popping up all the time to tantalize our taste buds. Chains are constantly testing, ...