Trees have been around for about 370 million years, and as you can from these incredible pictures, there's a good reason why they've survived for so long. Whether they're growing in the middle of gale-force winds, on the tops of rocky platforms, inside concrete tunnels, or even growing out of each other, these beautiful trees know how to survive in places where no other life finds a way. Which explains why the planet is host to around 3 trillion adult trees that cover an estimated 30% of the earth's land. Considering that plants produce the vast majority of the oxygen that we breathe, we should all think ourselves very fortunate that these cool trees are as resilient as they are. We wouldn't even be here if they weren't.

Now scroll down and check our list filled with unbelievable photos - from old trees clutching to life to big trees growing in desolate places and tree roots finding their way through pavements, the beauty of our Mother Nature is truly stunning. (h/t: twistedsifter)