12. The Undertaker vs. "The Nature Boy" Ric Flair - WrestleMania X-8
Ric Flair is the greatest professional wrestler to ever lace-up a pair of boots, want to know one of the dozen reasons why? Because at the age of 53, after years of being told it was time to hang it up, he made his return to WrestleMania and put on an absolutely astounding match with The Undertaker and restarted his illustrious career. And Arn Anderson's Spinebuster cameo is one of the coolest moments in WrestleMania history.