Comments on: Earthscraper: Inverted Pyramid Spans 1000 Vertical Feet Down https://lifeboat.com/blog/2018/04/earthscraper-inverted-pyramid-spans-1000-vertical-feet-down Safeguarding Humanity Wed, 11 Apr 2018 20:03:18 +0000 hourly 1 https://wordpress.org/?v=6.6.2