Whether you are buying gifts this weekend or merely window-shopping, New Yorkers willing to brave the crowds on upper Madison Avenue can also see cutting edge architecture, albeit in miniature form.

REX has designed a doll house for the Calvin Klein Collection, on view now through January 5, 2009 at their store on Madison at 60th Street. But this doll house isn’t child’s play. The structure, which looks like a large origami birdhouse suspended from diagonal braces, was built with the help of Magnusson Klemencic engineers and the fabricators at Situ Studio.

While this rendering makes the piece look like it’s suspended between buildings on one of New York’s canyon-like streets, it is, in reality, hung in the window. Go see it for yourself.

UPDATE: Here are some photographs of the doll house, for comparison with the rendering. It’s pretty impressive. The interiors feature tiny versions of Calvin Klein’s apparel, furniture, and home accessories lines.