![Amazon unveils spiraling, tree-covered skyscraper for Arlington HQ2](https://ic-cdn.flipboard.com/inhabitat.com/acb1af991288cc95bfb2b95cc7dca223e386e8b9/_xlarge.jpeg)
Amazon has unveiled images of The Helix, a LEED Platinum-targeted, spiraling tower that will serve as the centerpiece building for the Amazon HQ2 in …
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