#1 The Undertaker vs. Mankind - 1998
Perhaps one of the most, if not the most famous match in the history of WWE and all of wrestling, The Undertaker and Mankind went to hell and back at the King of the Ring event in 1998.
The second-ever Hell in A Cell match on pay-per-view, this one just outperformed The Undertaker and Shawn Michaels from Badd Blood, just for the sheer violence upgrade. The two started things off at the very top of the cell. As they traded blows, the cage roof started to give way as they battled over to the side. Then, to the amazement and horror of everyone watching, Taker threw Mankind off the top of the cell, and he fell 20 feet through the Spanish announcers' table below.
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The thud of Mankind's landing was horrifying. Although the bell didn't ring, Jim Ross says the match will be coming to an end as Mankind is being stretchered away, but instead, he hopped off and climbed back up on top of the cell, only to be met with a Chokeslam from The Undertaker, as Mankind dropped another near 20 feet, this time through the Cell roof to the ring below.
Amazingly, Mankind continued the match. The battle went on for another near 15 minutes, where Mankind amazingly got some offense in and even managed to make Taker bleed thanks to help from the cell. The sick carnage wasn't over yet however as Mankind retrieved a bag of thumbtacks from under the ring. He emptied them and tried to knock The Undertaker into them. After nearly hitting each other into them, Taker backdropped Mankind onto the tacks, and then delivered a Chokeslam, again on the tacks, followed by a Tombstone for The Undertaker to take it home.
Easily the most violent match in WWE history.