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8 lush green rooftops from around the globe

By: Katherine Butler on Aug. 17, 2011, 1 p.m.
Bilbo Baggins House

Photo: Steve Michaels

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Hobbit House of Montana

What began as a quest to build a creative family getaway in Montana morphed into the Hobbit House of Montana, a structure that boasts a green roof with Middle Earth flair. Steve Michaels, who designed every nook and cranny of this 20-acre fantasy land, was more worried about the details of J.R.R. Tolkien's books than energy-efficiency — but he still reaps the benefits. Pictured is the Bilbo Baggins house.