Enchanted Woods - Winterthur Museum, Garden and Library in Delaware. there's a huge beautiful garden, and a whole enchanted woods with little wooden faerie houses and messages from the fae snuck in places.
Another prefab house, this is weeHouse, designed by Alchemy. weeHouse is a very customizable prefab house. The user can choose almost all of the features. The sustainable features are also available to be chosen.