Over its 4.5 billion–year tenure, Earth has played host to numerous breathtaking geologic formations and awe-inspiring events. Each has shaped the planet as well as the organisms that followed, and no one can imagine what we’d look like today had these events conspired differently. 10 Earth The Waterworld Photo credit: Anynobody CC BY-SA 3.0 Approximately 71 percent of Earth’s crispy outer layer is covered with water, though that still leaves a good amount of dry terrain for postcard-worthy landscapes. Go back several billion years, however, and our planet was the Worlds in Collion Immanuel Velikovsky Best Price: $20.28 Buy New … Continue reading 10 Spectacular Geologic Formations