The exterior of a McDonald's fast food restaurant in South Dakota in 1970
The exterior of a McDonald's fast-food restaurant in South Dakota in 1970.
  • The most popular fast-food chains looked very different decades ago.
  • McDonald's restaurants look drastically different now from how they did in the 1950s.
  • Vintage photos show how other chains like Taco Bell, Chick-fil-A, and In-N-Out have evolved.

Many popular fast-food chains have been around for decades.

However, the menus, restaurant designs, and employee uniforms have changed a lot over the years.