I've long been fascinated by architecture and green building. My dream some day is to own a small, completely energy efficient, beautifully built house - the kind at least half the world could live in if they had a little financial help.
Here are some recent ones promoted by different designers:
The artistic recycled transportable shelter: Gomes
The Leaf House is gorgeous, but at $43,000, not too affordable.
And a very cool Hobbit style house.
Here's a book with 50 small eco-friendly house ideas.