When most people think of tiny houses, they think of the quaint, smallish-homes one finds in older neighborhoods, built back before the rise of the McMansion. But Tumbleweed Tiny Houses ($39,000 and up) make those homes looks like mansions in their own right. Ranging from 65 to 130 sq. ft. — plans for "Small" houses ranging from 251 to 774 sq. ft. are also available — these tiny homes are built with a goal of minimal environmental impact and maximum use of space, and since they sit on wheels, arriving pre-assembled, no building permit is required. Perfect for a backyard shack, rustic weekend getaway, or the modern nomad.