Chapel 2: variations
The dome of Chapel 2 is supported by a structure made of four columns and four arches. The tops of the arches form a square nearly identical to the one formed by the four columns. That means, in principle, that the structure may be stacked onto itself. At least, twice:
Chapel 2, support structure stacked twice
2684 pieces: 612 balls, 1864 rods, 208 squares (14.40 kg)
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The only required addition has been a square antiprism on top of each arch, in order to get upper squares with the right orientation. These stacked structures allows for such architectural follies as the one shown in the following pictures:
Two-level folly based upon chapel 2, side view 1
4486 pieces: 1050 balls, 2808 rods, 80 pentagons, 548 squares (23.46 kg)
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Two-level folly based upon chapel 2, side view 2
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Two-level folly based upon chapel 2, top oblique view
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A three-level stacked structure seems possible, although this time it collapsed before completion:
Chapel 2, support structure stacked thrice (incomplete)
3960 pieces: 900 balls, 2756 rods, 304 squares (21.25 kg)
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