Fast-food chains have always seemed to be in an arms race over who can dish out the world's weirdest burger. Part of this has to be a marketing tactic. When you churn out a Halloween-themed burger dotted with black sesame seeds, people are going to ask questions.
We took a look at some of the most undeniably ridiculous fast-food burgers to come out of the woodwork over the years. Some of them were available for a limited-time, others were only available outside of the U.S., but all of them caused some serious buzz.