List of octagonal buildings and structures

The oldest known octagon-shaped building[citation needed] is the Tower of the Winds in Athens, Greece, which was constructed circa 300 B.C.

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.

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.