We're pitting Man vs. Nature. When a glass-breaking gorilla and a speed-racing sea lion face off against a snowman in the desert and an underwater wheelchair, who comes out on top?

We countdown the clips that show off the Internet legends with the most epic skills on the planet: the world's most incredible skin, the world's first tattooing toes, and a speed flier that lands inside a moving cable car.

We're counting down the most amazing -- and dangerous -- home experiments! We're mixing electricity with swimming pools, racing supercharged golf carts on the dragway, and setting off homemade gunpowder to finally crown the top homemade hotshot.