Trees have been around for around 370 million years, and it is no coincidence that these incredible organisms have been on this planet for so long. A tree can grow almost anywhere, and it is usually only the ignorance and disrespect of mankind towards their power that deprives us of all the benefits that living in the vicinity of trees brings. Growing in the middle of gale-force winds, on the tops of rocky platforms, inside concrete tunnels, or even growing out of each other, trees are survivors whose resilience is incomparable to any other living organism. It is believed that there are roughly three trillion adult trees on Planet Earth which cover about 30% of its surface, providing us with the indispensable oxygen we breathe. Here are fifteen incredible pictures of trees growing in unbelievable places and ways as a tribute to the miracle that they are.