To leaf through its pages is to behold a sort of proto-“Whole Earth Catalog.” D.I.Y. tips and diagrams abound. There are budget recommendations and layout ideas for a “poor man’s” octagon.

Brum's Octagon will be visible from across the city when construction is finished in less than two years. The huge structure will stand at 155 metres (509 feet) and, according to bosses, has ...

An exclusive listing is offering an octagon-shaped penthouse in midtown Manhattan that has three floors of living space, panoramic views of the city, six bedrooms, nine bathrooms and a wine room ...