# List of octagonal buildings and structures

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 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.

## Australia

* The office pods of Callam Offices in Canberra
* Chinaman's Hat an octagonal gazebo-like structure in the South Channel of Port Phillip Bay
* The Octagon Theatre at the University of Western Australia.
* The old site of Hotel Saville in South Yarra, Melbourne, now unofficially referred to as The Blocktagon, which was renovated into a residential dwelling made up of six octagonal apartments during the eleventh season of reality show The Block.
* Nauru House 80 Collins Street, Melbourne
* Sancta Sophia College within The University of Sydney. Referred to as the octagon or informally ‘octa’

## Canada

At least 19 historic octagon houses are known to exist in Canada distributed across 4 eastern provinces. For a list of these houses, See: List of octagon houses. 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.
* Bastion Nanaimo, British Columbia
* Chapel at Dundurn, Hamilton, Ontario
* Miscou Island Lighthouse – strategic Baie des Chaleurs octagonal colonial lighthouse
* Huron County Gaol – distinctive octagonal jail design, 1839–41
* Pachena Point Light on Vancouver Island, British Columbia
* Speedside United Church, in Centre Wellington, Ontario

## China

* Liaodi Pagoda, China (1000s)
* Lingxiao Pagoda, China (860)
* Also many other pagodas

## Egypt

* Lighthouse of Alexandria
* Pharos of Abusir
* The Octagon

## Ethiopia

* St. George's Cathedral, Addis Ababa

## Germany

* Palatine Chapel in Aachen, built c. 972
* Dragon House, 1870 garden folly, Sanssouci Park, Potsdam, Germany
* Kaiser Wilhelm Memorial Church, built 1961

## Greece

* Tower of the Winds, Athens, Greece

## Hungary

* Rumbach Street synagogue, Budapest

## India

* Satyagnana Sabha, Vadalur, Vadalur, Tamil Nadu

## Iran

* Ferdows Religious School, Toon
* Jabalieh

## Israel

* Dome of the Rock, Jerusalem. 687-691 CE
* Chapel of the Ascension, Jerusalem c. 382 CE by Saint Helena; original octagonal shrine has been reconstructed multiple times.

## Italy

* Octagonal Hall, Baths of Diocletian (300), Rome
* Lateran Baptistery (440), Rome
* The Baptistery (5th century), Albenga
* Baptistery of San Giovanni, Florence (1059)
* The Battistero or Baptistery of Parma (1196)
* Basilica of San Vitale, Ravenna (547)
* Castel del Monte (Apulia), Andria (BT) (1240s)
* Church of St. Giacomo, Vicovaro (1400s)
* Tribuna of the Uffizi, Florence (1584)

## Japan

* Yumedono at Hōryū-ji, Ikaruga (739)
* Octagonal Hall of Eisan-ji, Gojō (760-764)
* Hokuendō of Kōfuku-ji, Nara (1210)
* Saiendō of Hōryū-ji, Ikaruga (1250)
* Main Hall of Keikyuin of Kōryū-ji, Kyoto (1251)
* Three-Story Pagoda of Anraku-ji, Ueda (1290s)
* Aizendō of Tōfuku-ji, Kyoto (1333-92)
* Main Hall of Busshō-ji, Mito (1585)
* Nanendō of Kōfuku-ji, Nara (1789)
* Nippon Budokan, Tokyo (1964)
* Pagoda of Genjo Sanzoin Complex in Yakushi-ji, Nara (1991)
* Sugamo Ohdai Kannondō in Taisho University, Tokyo (2013)

## New Zealand

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

## Norway

* Ankenes Church
* Bardu Church
* Buvik Church
* Dolstad Church, mixed octagonal-cruciform
* Klæbu Church
* Røssvoll Church
* Støren Church
* Trinity Church (Oslo), octagonal-cruciform combined
* Vinje Church (Hemne)

## Portugal

* Convent of Christ (Tomar, Portugal), 12th-15th Century. The adjacent chapel is only one of two octagonal chapels in the world. The other is in Jerusalem.
* Charola, Portuguese Info on the Chapel of the Convent of Christ.

## Singapore

* Lau Pa Sat, a dining hall and market

## Spain

* Alcazar of Jerez de la Frontera has an Octagonal Tower, in Almohad style
* El Micalet is the bell tower of Valencia Cathedral.

## Sri Lanka

* Temple of the Tooth

## Sweden

* Hedvig Eleonora Church, Stockholm (1737)

## United Kingdom

* Abbot's Kitchen, Glastonbury
* Abbot's Kitchen, Oxford
* Avenue Methodist Church in Sale, Greater Manchester
* Dutch Cottage, Rayleigh, Essex
* Eighteenth century replicas of the Athenian Tower of the Winds in the ornamental gardens of the following stately homes:
** Mount Stewart
** Shugborough Hall
** West Wycombe Park
* Naze tower, Walton on the Naze
* Octagon, Birmingham the world's tallest octagonal residential skyscraper currently under construction.
* Octagonal chapter houses at the following cathedrals:
** Liverpool Cathedral
** Salisbury Cathedral
** Southwell Minster
** Truro Cathedral
** Wells Cathedral
** York Minster
* Octagon Centre, Sheffield
* Octagonal lantern tower, Ely Cathedral, Ely
* Octagon Chapel, Norwich
* Octagon Temple at Cliveden
* Dreghorn & Springside Parish Church
* St James Church, Teignmouth
* Great Pagoda, Kew Gardens, London
* Storm Tower at Compass Point, Bude, Cornwall
* St. John’s Methodist Church, Arbroath
* United Reformed Church in Cheadle Hulme
* The main tower of Hadlow Castle, Kent
* The Butter Market, Barnard Castle, County Durham
* Hertford College's Middle Common Room, Oxford
* Octagonal Tower, Cardiff Castle, Cardiff, built by Robert Beauchamp 1425
* Octagonal drawing room, Castell Coch, Tongwynlais, Cardiff, built by William Burges for John Crichton-Stuart, 3rd Marquess of Bute, 1870s
* All seven towers of Caernarfon Castle, Caernarfon, built by James of St George for Edward I, late thirteenth century
* Porth-y-Tŵr, St Davids, Wales, thirteenth century