Glass Teepee built by Big Sur architect Mickey Muennig.
From a 2009 WSJ piece on Muennig:
When he first moved onto his Partington Ridge property in 1971, Muennig built himself a small, sixteen-sided conical building on a steep and rocky headland. The 16-foot-diameter structure, known as the glass teepee, was designed to provide temporary shelter while Muennig went ahead with the construction of a more substantial home. But in Big Sur, time often slows to a barely perceptible crawl, and Muennig found himself living in the glass teepee for another eighteen years before he finished work on the bigger house. There were lessons to be learned, however. “I learned to live in a small structure and I learned how to live very minimally,” says Muennig. “It didnt have any storage or closets.”