Octagon houses were a unique house style popular during the mid-19th century in the United States. They are characterised by an octagonal (eight-sided) plan shape, and often feature a veranda part or all the way around. Their unusual shape and appearance, quite different from the ornate pitched-roof houses typical of the period, can generally be traced to the influence of one man, amateur architect and lifestyle pundit Orson Squire Fowler.
This original catalog on CD eas written by O.S. Fowler describing the construction methods involved in constructing these unique structures.