Shells of a Sphere 4. October 20204. October 2020 / Steffelmaier Let me give you a little #riddle to solve – Where in the #world can you find a #structure like this, like #shells of a #sphere stretching into the #sky?More to come soon… Share with: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Like Loading...