Building with bamboo

Source: design boom via webecoist

Bamboo is a fast growing and strong material that might perfectly fit as sustainable building material, under the condition that it is not transported over thousands of kilometres.
Some nice examples of bamboo buildings can be found on Webecoist. 

A very nice bamboo building is the Green School in Bali. And there is a very inspiring TED talk by John Hardy, the founder of this school which is not only a beautiful building, but also an educational project that teaches children how to build, garden, create and get into college.