fly's eye dome
Buckminster Fuller made only one prototype of his 24ft fly's eye dome. The dome was recovered from a barn and underwent restoration. I was fortunate enough to participate in it's reassembly in 2011. The original components were subsequently scanned, turned into a parametric model, and duplicated. The dome was featured at Art Basel/Design Miami.
NOTES: Here are some illustrations from Bucky Fuller's Critical Path, depicting the dome's intended use.