Though some of America's oldest fast food chains have been around for roughly a century, the real rise of fast food came after World War II. This was a time of innovation, when a postwar economic ...

But what’s the oldest chain restaurant? What’s the oldest fast food chain? We’ve compiled some of the most popular and a few of our favorites—all of which are at least 40 years old.

F. Cooke is one of the oldest fast food restaurants in London. They've been serving handmade pies and mash with traditional jellied eels since 1862, and not much has changed since then.