Genesee Country Village & Museum's Octagon House (Second Floor)
House Plans The Glenorchard - Cedar Homes
Prolate, Multi-dome, Octagon, Olympus and Xanadu Floor Plans | Monolithic.org
The National Society of The Colonial Dames of America in California Octagons: A Popular Design in the 1860s - The National Society of The Colonial Dames of America in California