Nicknamed "Woody," this 236-square-foot trailer has taken a young, upwardly-mobile couple from Austin, Texas, to the Rocky Mountains hamlet of Marble, Colorado. Built at a cost of just around $50,000, the trailer was fitted with modern birch-veneer plywood and skylights, and has a half-size refrigerator, eight-inch-deep storage compartments built into the floor, a loft bed, and even a galvanized-steel cow trough bathtub.