Vinay Gupta of the Hexayurt Project held a talk at the Athens (Greece) Hackerspace about DIY Civilization. (Full talk here.)

Hexayurt is an open hardware house built in hundreds every year. We will consider materials supply chain, reuse, grid beam, planning and improvisation, nature, technology and lot of other things.

Also, according to Jay Springett there were 739 Hexayurts at Burning Man 2012!