List of octagonal buildings and structures

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Plan of the Dome of the Rock, Jerusalem.
The Tower of the winds in Athens.

Octagon buildings and structures are characterized by an octagonal plan form, whether a perfect geometric octagon or a regular eight-sided polygon with approximately equal sides.

The oldest known octagon-shaped building[citation needed] is the Tower of the Winds in Athens, Greece, which was constructed circa 300 B.C. Octagon houses were popularized in the United States in the mid-19th century and there are too many to list here, see instead List of octagon houses. There are also octagonal houses built in other times and cultures.

Below is a list of octagonal buildings and structures worldwide, excluding houses and windmills.




At least 19 historic octagon houses are known to exist in Canada distributed across 4 eastern provinces.[1] In Canada, the octagon house craze also engendered an octagonal deadhouse phenomenon. This included octagonal deadhouses, pre-burial edifices, built in the mid to late 1800s along Yonge Street in south-central Ontario, from just north of Toronto to Aurora. At least 3 octagon houses are classified as heritage sites, one in Richmond Hill and the other in King. Extant octagon houses in Canada include the following:

Other buildings and structures[edit]





Ceiling of the Palatine Chapel in Aachen.






New Zealand[edit]

  • The Octagon, the former Trinity Congregational Church in Christchurch, New Zealand


Dverberg Church with memorial for fishermen who lost their lives at sea.


View of the Octagonal Tower at the Alcazar in Jerez.


United Kingdom[edit]

Wells Cathedral plan, showing the octagonal chapter house (top).

United States[edit]

See also[edit]


  1. ^ Kline, Robert V. "Inventory of Older Octagon, Hexagon, and Round Houses". rvkline. Retrieved November 2, 2010. 
  2. ^ a b c d e Kline, Robert V. "Inventory of Older Octagon, Hexagon, and Round Houses: Canada". rvkline. Retrieved June 23, 2008. 
  3. ^ See photo of Sackville one here
  4. ^ Ousby, Ian, Blue Guide: England, 11th ed. 1995, various pages, London: A & C Black ISBN 0-7136-3874-5; New York: WW Norton ISBN 0-393-31340-9