In 1987, writer V. Elaine Gilmore traveled to Melbourne, Florida, so that she could experience life in a geodesic dome house. Unlike the wooden dome houses we covered previously, this one was made of concrete and flame-retardant polystyrene. Houses made of these materials were reportedly resistant to rot, termites, and undesirable temperatures. Home owner and American Ingenuity president Micheal Busick explained that foam retained the house's heat during the winter, and its coolness during the summer (a high priority for any Floridian). Foam was easy to cut, hard to penetrate, and relatively inexpensive. American Ingenuity built their homes for between $32 and $38 per square foot, which is about what you would pay for a conventional house of the same size.