It might look pretty, but can we talk about how volcanoes are big ol' mountains that are also openings into the fiery crust of the Earth?
And sometimes volcanoes get grumpy so they explode and spew molten death sludge into the friggin' sky.
But volcanoes are just the delivery method. The important part is nature's "eff you" to everything green and alive: lava.
Lava starts off as magma beneath the surface of the earth. Waiting.
And then, BOOM.
This is some crazy outer-space hell planet business.
You might think lava is slow. Sure, sometimes it is.
But once it gets going, lava can flow up to 40 miles per hour. Which is damn fast for what's basically a river of liquid fire.
Part fire, part earth, 100% annihilation. Source.