As we deplete our natural resources, we are left with huge gaping holes in the ground - scars from our open-pit mining exploits. Matthew Fromboluti of Washington University in St. Louis has a plan to heal those scars with an underground skyscraper that fills the hole and creates a self-sustaining community in its place. His proposal, Above Below, is proposed to infill the 900-foot deep and nearly 300-acre wide crater left by the former Lavender Pit Mine outside of Bisbee, Arizona.

Underground Skyscraper is a Self-Sufficient Desert City | Inhabitat - Green Design Will Save the World