Not every new fast-food creation is a hit. In fact, many are spectacularly bad.

From McDonald's McD.L.T., with its hot and cold sides that you put together yourself, to that time KFC -- then still called Kentucky Fried Chicken -- tried to convince America that eating fried chicken livers was a good idea, Chicago Now ranked the top 15 fast-food failures in a trip down bad-memory lane.

And all the big players have had their misses, some more dismal than others.

McDonald's tops the list with the worst idea in fast food: the Arch Deluxe, a "grown up" burger that Chicago Now called "the crown jewel of McFailure." Launched in the 1990s, the company hyped the Arch D. as the burger for grown-ups with Spanish onions, a potato bun and "grown-up mustard." Unfortunately, it just didn't taste very good.

The McPizza and the ill-fated Hula Burger, a Lenten treat that would offer Catholics another non-meat option than the Filet-o-Fish, featured a pineapple slice in place of the burger patty. Would you like ketchup on that pineapple? How about a pickle?

McDonald's McLobster and McBrats also made the list.

Wendy's Super Bar, which combined a salad bar, a Mexican taco and burrito bar and an Italian pizza and pasta station, goes down in fast-food fail history, Chicago Now reported.

Burger King's table service and popcorn were big fails, and the King's flame-broiled style didn't go over well with the vegetarian crowd when it introduced the BK VEGGIE burger.