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Hong Kong architect Gary Chang rests in a hammock inside his 32-square-metre apartment in Hong Kong

Hong Kong architect Gary Chang rests in a hammock inside his 32-square-metre apartment in Hong Kong January 28, 2010. After three decades in the same boxy dwelling Chang grew up in, he has come up with an innovative answer to the increasingly cramped lives of many urban dwellers -- the science fiction-like "domestic transformer". Picture taken January 28, 2010. REUTERS/Bobby Yip (CHINA - Tags: BUSINESS CONSTRUCTION SOCIETY IMAGES OF THE DAY) - RTR29YLD

Unusual homes

Snapshots of the most unusual homes around the world, including those built upside-down, in trees and out of ice.