Ely Cathedral bishop, the Bishop of Huntingdon. Architecturally it is outstanding both for its scale and stylistic details. Having been built in a monumental Romanesque style, the galilee porch, lady chapel and choir were rebuilt in an exuberant Decorated Gothic. Its most notable feature is the central octagonal tower, with lantern above, which provides a unique internal space and, along with the West Tower, dominates the surrounding landscape. Ely Cathedral is a major tourist destination, receiving around 250,000 visitors per year, and sustains a daily pattern of morning and evening services. Ely Abbey was founded in 672, by Æthelthryth (St Etheldreda), daughter
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