3V dome with a one-of-a-kind tapered crow's nest that needs some complex bends to support the combined weight of the people and the tensile forces from the zipline going down.
T.Smith knows how to make a geodesic dome.
When I made to the top, I felt rejuvenated. The way back down on a wobbly flexible ladder is not for the faint of heart. One time was enough.
Spectacular 4V dome with camouflage net and Art installation.
The one and only Sputnik 3 story multi domes, @ 3:00@K.