Domes have been used through out history and all over the world. They have been used as houses in Africa, the top of a church and now even as environmental homes.
Dome houses have been built in the Untied States as an environmental effort since the 1970 with the Natural Spaces Dome Company. The company bases the construction of the homes off of triangles, which are one of the strongest structures, as the company brags.
This house was able to survive a direct hit from hurricane Ivan!
In Japan a new dome house has been developed and put into production a dome house that can be built in a week by two or three people, the homeowner and his friends. The house is made of 100% expanded polystyrene foam. The sections of the house snap together. The company brags that the house construction material has many advantages over conventional wood and metal, the dome does not rust, rot, or attract termites. It is highly resistant to earthquakes and typhoons, and is coated with a flame retardant and will not emit toxic fumes in a fire.