Ely Cathedral The relief scenes were built into the wall, so each face or statue was individually hacked off, but leaving many finely carved details, and numerous puzzles as to what the original scenes showed. After the reformation it was redeployed as the Parish Church (Holy Trinity) for the town, a situation which continued up to 1938. The central octagonal tower, with its vast internal open space and its pinnacles and lantern above, forms the most distinctive and celebrated feature of the cathedral. However, what Pevsner describes as Ely's 'greatest individual achievement of architectural genius' came about through a disaster at the
Octagonal antiprism has the two "n"-gonal bases and, connecting those bases, 2"n" isosceles triangles. If faces are all regular, it is a semiregular polyhedron. Octagonal antiprism In geometry, the octagonal antiprism is the 6th in an infinite set of antiprisms formed by an even-numbered sequence of triangle sides closed by two polygon caps. Antiprisms are similar to prisms except the bases are twisted relative to each other, and that the side faces are triangles, rather than quadrilaterals. In the case of a regular 8-sided base, one usually considers the case where its copy is twisted by an angle 180°/"n". Extra regularity is