Cardboard box maze spans two rooms and a hallway

Flickr user Daniel W lovingly documents his wonderful Hallowe'en cardboard maze: "Constructed out of cardboard boxes, duct tape, and 300 bolts. The maze spans two rooms and a hallway."

Link

(via Make Blog)

Update:
Jennifer sends us a link to box rivets — "For building box mazes (work on coroplast, too) way better than bolts!"