"Plantagon With of all people on the planet projected to live in cities by food production will have to move into cities if it is to remain cost-efficient. Read more: Plantagon: A Massive Geodesic Dome Farm for the Future
Honey Sphere by 02 Treehouse. Natural structure that allows the form of the tree to be seen. Wouldn't provide much shelter but creates a fab area to sit and enjoy the views through the honeycomb sections.
This magnificent structure is called the Edifice Sphere. The concept Spherical skyscraper by EQUIP Xavier Claramunt, is a hundred stories tall structure, but instead of being a tower, it is actually a sphere within a sphere.