I found these interesting pictures..
http://www.imagetor.com/out.php/i12034_a.jpg
http://www.imagetor.com/out.php/i12035_b.jpg
http://www.imagetor.com/out.php/i12036_c.jpg
http://www.imagetor.com/out.php/i12038_s.jpg
http://www.imagetor.com/out.php/i12037_e.jpg
So how big is our house ?
